A 1.00 L sample of HCl(aq) is prepared and has a pH of 1.045.
What mass of HCl(g) is dissolved?

Answers

Answer 1

The mass of HCl dissolved to form the solution is 3.285 g.

What is the mass of HCl dissolved?

The mass of HCl is determined from the pH.

The concentration of hydrogen ions is given as:

[H⁺] = 10⁻1.045 = 0.09

1.0 moles of HCl is produced by 1.0 moles HCL

Moles of HCl = 0.09

Mass of HCl = 0.09 * 36.5

Mass of HCl = 3.285 g

In conclusion, the mass of HCl dissolved is obtained from the pH of the solution.

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Related Questions

5. Why would a measurement be reported as 18.0 mL instead of 18 mL?​

Answers

Answer:

A measurement may be reported as 18.0 mL instead of 18 mL to indicate that it has been measured with greater precision.

The decimal point in 18.0 mL indicates that the measurement was taken to the tenths place, meaning that the actual measurement is between 17.5 mL and 18.4 mL. On the other hand, 18 mL implies that the measurement is between 17.5 mL and 18.9 mL.

Therefore, the use of the decimal point in this case is a way to indicate that the measurement has a higher degree of precision. It is used as a way to communicate that the measurement was taken with greater accuracy and that the number has been rounded to the nearest tenth.

A measurement may be reported as 18.0 mL instead of 18 mL to indicate that it is an exact or precise measurement, rather than an approximation. In scientific experiments or laboratory work, measurements are often reported with a certain number of significant figures, which reflect the precision of the measurement.

In this case, 18.0 mL has one decimal point and implies that the measurement was made to the nearest 0.1 mL, whereas 18 mL doesn't have a decimal point and implies that the measurement was made to the nearest mL.

Additionally, in some cases, the trailing zero after a decimal point is used to indicate the accuracy of the measurement and to make it clear that it is not a rounded number.

Use the variational method to obtain an upper limit for the ground state energy of the He atom using as trial function

Answers

However, the variational technique yields all states, but the trial function method does not (unless your trial function space contains the exact excited states).

Variational method: what is it?

A mathematical technique called the variational approach is used to roughly compute the energy levels of challenging quantum systems. A solvable system's energies may also be roughly estimated using this technique, and the correctness of the method can then be determined by comparing the approximated and known energies.

E [ | ψ ⟩,⟨ψ |] =⟨ψ|H|ψ⟩−λ(⟨ψ|ψ⟩−1).

To calculate the variation, one uses the formula: E=|H|+|H|||.

Please take note that we regard | and | as independently variable.)

This indicates that the functional is stationary for the following: H|=|.

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A sealed vessel contains 0. 200 mol of oxygen gas, 0. 100 mol of nitrogen gas, and 0. 200 mol of argon gas. The total pressure of the gas mixture is 5. 00 atm. The partial pressure of the argon is responses 0. 200 atm 0. 200 atm 0. 500 atm 0. 500 atm 1. 00 atm 1. 00 atm 2. 00 atm 2. 00 atm 5. 00 atm.

Answers

Answer:

Below

Explanation:

Each exerts pressure proportional  to its fraction of the total

total = .200 + .100 + .200  = .500 mol

argon is .200 of this

   .200 / .500  * 5 atm = 2 atm

Calculate the mass of 34.2 moles of calcium carbonate

Answers

Answer:

approximately 3423 grams

Explanation:

The molecular weight of CaCO3 is 100.0869

Therefore,

Mass = 34.2 × 100.0869

= 3422.97198

What are the 4 types of verbal?

Answers

Interpersonal verbal communication, Intrapersonal, small group communication and Public communication are the four types of verbal communication.

You could find it easier to express your ideas, thoughts, feelings, and experiences by using various verbal communication techniques. You can use this to consider your personal strengths. You might describe yourself as tenacious, cooperative, or patient, for instance. It's critical to communicate your strengths, priorities, and expectations to others, especially if you plan to collaborate with them. Team members that are familiar with your working style and skill set may aid in your transition to your new position.

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Draw a chiral aldehyde with the formula C3H5BrO.

You do not have to explicitly draw H atoms. In cases where there is more than one answer, just draw one.

Answers

The structure of chiral aldehyde with the formula C3H5BrO would have an aldehyde group at C1 atoms and Br attached to the terminal C atom of the chain.

An organic substance with a -CHO functional group is an aldehyde. We can start by drawing a linear chain with the substituents and then draw branched carbon chains at non-equivalent carbon atoms to create all the structures. According to the nomenclature rules for organic compounds, C3H5BrO can be named as 2-bromopropanal or 2-bromo-propionaldehyde. This compound will have an aldehyde group at C1 and a methyl group and a halide group attached to C2 atom of the chain.

Aldehydes are recognised as organic substances because they have a -CHO functional group. It has a carbonyl centre, which implies that a carbon atom will form a double bond with an oxygen atom and that the same carbon centre is joined to an alkyl group or additional hydrogen atoms.

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Describe in detail the 3 different plate boundaries. This should be 5 to 6 sentences long and using your best grammar.

Answers

Paleomagnetism, The strength and direction of the earth's magnetic field at the time the rocks formed are preserved in many rocks.

Which rocks are mainly responsible for magnetism? Mostly in rocks that are igneous. Iron and other magnetic minerals can move and align with the planet's magnetic polarity when in the liquid stage of magma. These minerals are trapped in their original positions after the magma cools.Because minerals cannot move once they are cooled, this alignment reveals the polarity of the Earth's magnetic fields at the time the rock formed.Laterally deposited igneous rock layers will exhibit various mineral orientations and demonstrate how the planet's magnetic fields altered over time.The rocks include records of previous magnetic field reversals. Iron-rich minerals that function as small magnets are found in many rocks. These minerals start to develop as magma or lava cools.The magnetic minerals floating in the molten mass align themselves with the magnetic field because the molten rock has not yet fully hardened. These minerals "lock in" the magnetic field as numerous small compasses when the rock ultimately forms.

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A 1.0 liter flask contains 5.0 moles of a gas at 27.0°C. What is the pressure of the gas? [R-.082 L.atm/mol.k]
A) 300 atm
C) 101.3 atm
D) 123 atm
B) 0.41 atm

Answers

The pressure of the gas 123 atm.

How do you find the pressure of a gas?

Pressure is the amount of force a substance applies to another substance per unit of area. The force that the gas applies to the container boundaries is known as the gas's pressure.

Along the designated volume, the gas molecules move at random. They bump into the ground and each other throughout this movement.

The effect of each gas molecule is too small to be felt, let alone seen. However, the gas pressure is determined by the combined impact of all gas molecules

P = nRT / V

Gas constant, R-.082 L.atm/mol.k

here  number of moles, n=  5 moles

temperature, T = 27°C = 300.15 kelvin

volume,   V = 10 liter

Then values given in the equation P = nRT / V

  the pressure of the gas P

                         =  5*.082*300.15/1

                          =     1,230.615/10  

                           = 123 atm    

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A 13. 1-g ample of ice at −17. 9°C i mixed with 103. 5 g of water at 73. 0°C. Calculate the final temperature of the mixture auming no heat lo to the urrounding. The heat capacitie of H2O() and H2O(l) are 2. 03 and 4. 18 J/g·°C, repectively, and the enthalpy of fuion for ice i 6. 02 kJ/mol

Answers

The final temperature of the mixture can be considered as 73°C.

To calculate the final temperature of the mixture, we need to use the heat capacity and the enthalpy of the melting of water. The heat capacity of water is the amount of heat required to raise 1 gram of water by 1 degree Celsius. Melting enthalpy is the amount of heat required to melt one mole of a solid at its melting point.

First, calculate the total heat absorbed in the process of melting the ice. The heat absorbed by ice is equal to the heat capacity of the ice multiplied by the mass of the ice and the change in temperature.

Qice = (mass of ice) x (heat capacity of ice) x (change in temperature)

Qice = (13.1 g) x (2.03 J/g·°C) x (17.9°C - (-17.9°C))

Qice = 13.1 g x 2.03 J/g·°C x 35.8°C = 4,849.8 J

We can also calculate the total heat absorbed by the water during the increase in temperature. The heat absorbed by the water is equal to the heat capacity of water multiplied by the mass of the water and the change in temperature.

Qwater = (mass of water) x (heat capacity of water) x (change in temperature)

Qwater = (103.5 g) x (4.18 J/g°C) x (73.0°C - 0°C)

Qwater = 103.5 g x 4.18 J/g°C x 73.0°C = 30,529.1 J

The final temperature of the mixture can be found by using the total heat absorbed by the ice and water, and the heat of fusion.

The final temperature of the mixture is approximately equal to the temperature of the water before mixing (73.0°C) because the heat absorbed by the ice during melting is much smaller than the heat absorbed by the water during heating.

Q total = Q ice + Q water + heat of fusion

Q total = 4,849.8 J + 30,529.1 J + 6,02 kJ/mol x (13.1g / 18g/mol)

Now we can solve for the final temperature:

Final temperature= Q total / (mass of mixture *  heat capacity of water)

The final temperature of the mixture can be considered as 73°C.

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How many grams of potassium chloride (KCI are needed to prepare 0.750 L of a 150 M solution of potassium chloride in water?

Answers

The grams of potassium chloride (KCI are needed to prepare 0.750 L of a 150 M solution of potassium chloride in water is the

83.81 g.

Given that :

Molarity of the KCl = 1.50 M

Volume of the potassium chloride = 0.750 L

The Molarity expression is given below :

Molarity = moles / volume in L

moles = Molarity × volume

moles = 1.50 × 0.750  

moles = 1.125 mol

molar mass of the KCl = 74.5 g/mol

Mass of the KCl = moles × molar mass

Mass of the KCl = 1.125 × 74.5

                          = 83.81 g

Thus, the mass of KCl is 83.81 g

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A science teacher adds water to a strong acid for use in the lab with students. this makes the concentration_____, because the amount of solute per volume of solvent_____.

Answers

A powerful acid is made into a solution by a science instructor so that pupils can use it in the lab. This weakens the concentration since there is less solute per quantity of liquid.

Exactly what is an acid?

A substance is considered an acid if it produces a sour taste in water solution, turns blue litmus paper red, reacts with the some metals to release hydrogen, reacts chemically bases and form salts, and encourages chemical reaction.

Which of these three acids are they?

Typically, acids can be categorized into three main groups. Binary acid comes in first, followed by oxyacid and carboxylic acid, respectively. All of the names of binary acids begin with "H-A," which stands for a hydroxyl group to a nonmetal atom.

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Answer:

weaker
decreases

Explanation:

edge 2023

calculate the number of moles of c2h4 that are actually produced in the experiment and mesaured in the gas collection tube

Answers

35.7 x 1atm/760 torr = 0.0470 atm

P(ethene) = P(total) - P(water) = 0.822atm - 0.0470atm = 0.775atm

n= PV/RT = (0.775atm)(0.0854L)/(0.08206L atm mol-1 K-1)(305K) = 0.00264mol.

What is moles?Mole, also spelled mol, in chemistry, a standard scientific unit for measuring large quantities of very small entities such as atoms, molecules, or other specified particles.The mole designates an extremely large number of units, 6.02214076 × 1023. The General Conference on Weights and Measures defined the mole as this number for the International System of Units (SI) effective from May 20, 2019. The mole was previously defined as the number of atoms determined experimentally to be found in 12 grams of carbon-12.The number of units in a mole also bears the name Avogadro’s number, or Avogadro’s constant, in honour of the Italian physicist Amedeo Avogadro (1776–1856). Avogadro proposed that equal volumes of gases under the same conditions contain the same number of molecules, a hypothesis that proved useful in determining atomic and molecular weights and which led to the concept of the mole.

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which substance produces hydrogen ions in aqueous solution​

Answers


When a substance is dissolved in water, the solute can either accept or donate protons, which are also known as hydrogen ions. This process is called protonation or deprotonation and the ratio of proton acceptors to donors determines the degree of acidity or alkalinity. In an aqueous solution, the hydrogen ion concentration is determined by a number of factors such as temperature, pressure, and the concentration of other ions present in the solution.

When discussing hydrogen ions in aqueous solution, it is important to understand the concept of pH. pH is a measure of acidity or alkalinity and is expressed on a scale of 0 to 14. A pH value of 7 is neutral, values greater than 7 are alkaline and values less than 7 are acidic. The higher or lower the pH value, the greater or lesser the concentration of hydrogen ions present in the solution.

So, what substance produces hydrogen ions in aqueous solution? The answer is that any water-soluble acid can donate proton ions to the solution, thus increasing the concentration of hydrogen ions. Examples of acids include hydrochloric acid, nitric acid, sulfuric acid and carbonic acid. These substances are often referred to as proton donors as they give off hydrogen ions when dissolved in water.

It should also be noted that some substances can act as both proton acceptors and donors depending on the pH level of the solution. These substances are known as amphiprotic and include common substances such as baking soda and table salt.

Draw (on paper) a Lewis diagram for CH3CH2CH2OH
Use your diagram to answer the following questions.
The number of C-H bonds =
The number of O-H bonds is
The number of C-C single bonds =
The number of C-O single bonds =
The total number of lone pairs =

Answers

The structure of ethanol is shown below. As a result, the molecule CH3CH2OH C H 3 C H 2 O H is polar. Both a Lewis acid and a Lewis base, CH3CH2OH C H 3 C H 2 O H, can function.

Due to the oxygen atom's lone pair of electrons, it is primarily a Lewis base. The most polar of these is the O-H bond. The difference in electronegativity between the two atoms involved can be used to explain it. Ethanol, with the chemical formula CH3 CH2 OH, contains hydrogen bonds. Covalent bonds between hydrogen atoms produce hydrogen bonds. However, CH3CH2OH alone displays hydrogen bonding, which is substantially stronger than the intermolecular forces that are present in the other options.

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Using the Lewis diagram, I was able to determine that: 1) there are 7 C-H bonds, 2) there are 1 O-H bonds, and 3) The C-C bond count is 2, 4) The C-O bond count is 1, 5) There are 2 lone pairings.

Lewis diagram, often referred to as Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDS), are diagrams that depict the interactions of atoms in molecules as well as any lone pairs of electrons that may be present. Any covalently bound molecule, as well as coordination compounds, can be represented by a Lewis structure. Gilbert N. Lewis introduced the Lewis structure in his 1916 essay The Atom and the Molecule, and it bears his name. By adding lines between atoms to indicate shared pairs in a chemical bond, Lewis structures expand on the idea of the electron dot diagram.

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What is the number of ammonia molecules made when 6 grams of hydrogen gas reacts with excess nitrogen?

Answers

4 moles of ammonia molecules can be made when 6 grams of hydrogen gas reacts with excess nitrogen.

[tex]N_{2}[/tex](g) + 3[tex]H_{2}[/tex](g) → [tex]2NH_{3}[/tex](g)

1 mole of [tex]N_{2}[/tex] reacts with 3 moles of [tex]H_{2}[/tex]

Therefore, 6 moles of [tex]N_{2}[/tex] will react with 18 moles of [tex]H_{2}[/tex]

[tex]H_{2}[/tex] + 6 no. of moles. ( Hydrogen is a limiting reagent).

No. of moles of ammonia are formed when 3 moles of [tex]H_{2}[/tex] will react with excess of [tex]N_{2}[/tex] = 2

No. of moles of ammonia are formed when 6 moles of [tex]H_{2}[/tex] will react with excess of [tex]N_{2}[/tex] = 2/3×6 = 4

Therefore, it is a gaseous equation (all the reactants as well as products are gases).

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If we react 10 moles of hydrogen with 6 moles of oxygen. what is the limiting reagent and how much water is produced?

Answers

The weight of hydrogen is equal to moles multiplied by the molar mass since we are asked to determine its weight. It will be 24 grammes because that is 2, thus this is 24 grammes.

How many moles of CO2 are produced from 6 moles of O2?The mole ratio of O2 to CO2 is 1:1 according to the equation that is balanced. Thus, the amount of CO2 created from 6 moles of O2 is equal to (1/1) x 6 mol, or 6 mol.The reaction's byproducts contain 24 oxygen atoms. In total, 6 oxygen molecules are needed for every glucose molecule in the process. The molecular formula for ATP energy is 6O2 + C6H12O6 --> 6CO2 + 6H2O.After the reaction is finished, 10 moles of water will be produced. Explanation: Water is being produced by the reaction between 10 moles of hydrogen and 6 moles of oxygen.Thus, the reaction between ten volumes of dihydrogen gas and five volumes of oxygen gas results in ten volumes of water vapour. Keep in mind the Avogadro's law, which explains how the volume and number of moles relate to one another.

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In your own words define law of conservation of energy

Answers

Answer: Energy cannot be created or destroyed it can only be transformed and used to make other forms of energy.

Explanation:

Identify one way to improve models of electron dot structure

Answers

Electron dot structures or Lewis dot structures can be improved by adding valence electrons of each atom and then representing them in form of dots.

What are Lewis dot structures?

Lewis dot structures are also called as electron dot structures and can be drawn if the molecular formula of a compound is known. It provides information regarding the nature of bond and the position of atoms .

They are also capable of exhibiting the lone pair if any present in a molecule or compound.Lewis defined a base to be an electron pair donor and an acid to be an electron pair acceptor.

They are capable of reflecting electronic structure of elements and even the pairing of electrons . In the diagram, each dot represents an electron while a pair of dots represent a bond between the atoms.

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Which flask has the highest
pressure, assuming they all contain
1 mole He at 298K?

Answers

D.
They all have the same amount of helium inside, so the flask with the smallest size has the most pressure.

Answer: d 1.0l

Explanation:

When phosphate rock is treated with nitric acid-soluble salts are produced that can be used as fertilisers. Give the TWO substances produced when nitric acid reacts with phosphate salt.

Answers

Answer:

Phosphoric acid and sodium nitrate.

Explanation:

The balanced chemical equation for the reaction between nitric acid (HNO3) and phosphate salt (Na3PO4) is:

3 HNO3 + Na3PO4 → H3PO4 + 3 NaNO3

The products of this reaction are phosphoric acid (H3PO4) and sodium nitrate (NaNO3). Therefore, they are the two substances produced as a result of this reaction.

I hope this helps!

The two substances produced during chemical change is Phosphoric acid and sodium nitrate.

What is chemical change?

Chemical changes are defined as changes which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical change.

There are several characteristics of chemical changes like change in color, change in state , change in odor and change in composition . During chemical change there is also formation of precipitate an insoluble mass of substance or even evolution of gases.

There are three types of chemical changes:

1) inorganic changes

2)organic changes

3) biochemical changes

During chemical changes atoms are rearranged and changes are accompanied by an energy change as new substances are formed.

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HELP!!!!!!!! This question is rlly confusing!!!!

Answers

The forms of heat transfer and examples of them when matched, are:

Conduction:

Touch transfers heat Earth warms air

Convection :

Warm air rises Liquid / gas transfer heat

Radiation

Sun heats Earth Waves transfer heat

What are the forms of heat transfer ?

There are three main forms of heat transfer:

Conduction: This is the transfer of heat through a solid material. Heat is conducted through the material by the collision of atoms and molecules.  Touch therefore transfers heat.

Convection: This is the transfer of heat by the movement of a fluid or gas. In convection, heat is transferred by the movement of the fluid or gas itself.

Radiation: This is the transfer of heat by electromagnetic waves, such as infrared radiation. Radiation does not require a medium for heat transfer and can occur in a vacuum. The sun's energy reaches the Earth through radiation, and heat from a fire can also be felt by radiation.

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An 20.5 g sample of zinc metal has a volume of 5.5 cm3. Calculate the density of zinc.

Answers

Taking into account the definition of density, the density of an 20.5 g sample of zinc metal and a volume of 5.5 cm³ is 3.72 g/cm³

Definition of density

Density is a scalar magnitude referring to the amount of mass in a certain volume of a substance or an object.

In other words, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

density= mass÷ volume

Dnsity of zinc

In this case, you know that:

Mass= 20.5 gVolume= 5.5 cm³

Replacing in the definition of density:

density= 20.5 g÷ 5.5 cm³

Solving:

density= 3.72 g/cm³

In summary, the density in this case is 3.72 g/cm³

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Cae-2 - Reeta wa feeling thirty but there wa only a pot of water at home which wa muddy and unfit for drinking. How do you think Reeta would have made thi water fit for drinking if the following material were available to her? Alum, tub, mulin cloth, ga tove, thread, pan and lid. Brainly

Answers

Reeta could have made the water which is fit for drinking purposes using the materials available to her.

With the available materials, Reeta would have taken the following steps to purify water.  

Firstly, she can filtered the muddy water with the help of a muslin cloth, which is mainly used for the purification purposes. Now, she has to tie a piece of Alum with the help of a thread and submerge it in water and then leave the water which is undisturbed for some time. After resting, the impurities will finally settle down at the bottom and the water from the top can be drained off. Now she has to boil the discarded water for 10 minutes by covering it with the pan and making it cool down followed by filtering the water. And finally, the water will be purified with filtration that will make it fit for drinking purpose.

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(scientific reason)
If the temperature increases, then the concentration of sodium hydroxide (NaOH) will decrease....
why's that pls help begging

Answers

If the temperature increases, then the concentration of sodium hydroxide (NaOH) will decrease because the equilibrium will shift in the backward direction.

What is sodium hydroxide ?

Sodium hydroxide is an ionic compound consisting of Na⁺ and OH⁻. It is also called as caustic soda. It is an inorganic compound with chemical formula NaOH.

When NaOH dissolve in water it is exothermic in nature. As the temperature increases, the equilibrium will shift in the backward direction.Therefore,as to nullify the effect of increased temperature. It will decrease the solubility of NaOH in water.

Thus, If the temperature increases, then the concentration of sodium hydroxide (NaOH) will decrease.

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how can different parts of the sun rotate at different speeds

Answers

The sun is made up of several different layers, each with its own unique properties. These layers are the photosphere, chromosphere, and corona. Each layer rotates at different speeds due to the different physical properties of each layer. The photosphere, which is the visible surface of the sun, rotates the fastest, at a rate of about 25 days per rotation. The chromosphere, which is the layer just above the photosphere, rotates at a slower rate of about 33 days per rotation. Finally, the corona, which is the outermost layer of the sun, rotates at the slowest rate of about 36 days per rotation.

Answer:

Because unlike Earth and other solid objects, the entire Sun doesn't rotate at the same rate. Because the Sun is not solid, but is instead a giant ball of gas and plasma, different parts of the Sun spin at different rates. The interior of the Sun does not spin the same way as does its surface.

Please answer the questions in the picture below

Answers

Answer b

Explanation:

What is the percent yield if 18 grams of water are produced when 4 grams of hydrogen with excess oxygen? 2H^2 + O^2 —-> 2H^2O

Answers

If 4 grams of hydrogen with excess oxygen make 18 grams of water, what is the yield in percentage terms? 2H^2 + O^2 —-> 2H^2O

Is hydrogen a liquid or a gas?

Hydrogen is a gas at standard conditions of temperature and pressure, but around -423 degrees Fahrenheit, it condenses into a liquid (minus 253 degrees Celsius).

Where can you find hydrogen?

The majority of stars and the sun include it, and the planet Jupiter is primarily made of it. Water has the most hydrogen on Earth. All that can be discovered of it as a gas in the air is less than 1 part per million by volume.

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List several pieces of information you can determine about a chemical reaction just by reading the chemical equation.

Answers

Chemical reactions are the processes by which a material or substances change to create new compounds with new attributes.

What does "chemical reaction" mean?

Through its symbols and equations, a chemical equation reveals information about the reactants and products. the proportion of reactants to molecules. The relative masses of reactants and products are taken into account when molecular masses are represented in grams as "Unified Masses" (U).

as an example of a chemical process:

When one or more chemicals transform into one or more other compounds, a chemical reaction takes place. For instance, the reaction between vinegar and baking soda produces sodium acetate, carbon dioxide, and water, and the reaction between iron and oxygen results in rust.

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Draw the lewis structure and identify the three molecular geometrys for CH3SO2H, C(CH2)2 and CH3NCO

Answers

The molecular geometry of CH3NCO is: Linear

The molecular geometry of CH3SO2H is: T-shaped

The molecular geometry of C(CH2)2 is: Linear

Lewis structures, also known as Lewis dot formulas, Lewis dot structures, electron dot structures, or Lewis electron dot structures (LEDS), are diagrams that depict the bonding between atoms in a molecule as well as any lone pairs of electrons that may occur. Any covalently bound molecule, as well as coordination compounds, can be represented by a Lewis structure. Gilbert N. Lewis, who introduced the Lewis structure in his 1916 paper The Atom and the Molecule, was named after it. Lewis structures expand on the electron dot diagram concept by adding lines between atoms to indicate shared pairs in a chemical bond.

The Lewis structure  for CH3SO2H, C(CH2)2 and CH3NCO are:

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71.05 g of sodium sulfate (Na2SO4) are dissolved to obtain 2 liters of standard solution. What is the concentration of a solution

Answers

Answer:

I do k .............................

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analyzing different points of view in literature Oxygen gas reacts with aluminum powder to form aluminum oxide. how many liters of o2 gas, measured at 782 mmhg and 25c, are required to completely react with 64.8 grams of aluminum? find the length of the loan in months, if $500 is borrowed with an annual simple interest rate of 13 nd with $565 repaid at the end of the loan = _______ months. Simplify > (x)3(x3y)2x9y2x5y2x6y2x9y2 What is the pH of a 1.8 M solution of the weak acid HNO2, given that the Ka of the acid is 7.2104? The equilibrium expression is:HNO2(aq)+H2O(l)H3O+(aq)+NO2(aq)Round your answer to two decimal places. rewrite sin ( x 5 3 ) sin(x-53) in terms of sin ( x ) sin(x) and cos ( x ) cos(x). A manufacturer of a smartphone battery estimates that monthly demand follows a normal distribution with a mean of 400 units and standard deviation of 26. Material cost is uniformly distributed between $7.00 and $8.50. Fixed costs are $2,700 per month, regardless of the production rate. The selling price is $15 per unit. a. Use Analysis ToolPak or R, both with a seed of 1, to simulate 1,000 trials to estimate the expected monthly profit and standard deviation. Demand values need to be rounded to integers, and use two decimal places for the material cost. b. What are the best and worst profit scenarios for the company? What is the hydrogen ion concentration in a urine specimen that registers a pH of 4 on a strip of pH paper? A) 0.4 M B) 0.001 M C) 0.004 M D) 0.0001 M E) 0.0004 M If more gas stations are built in the local area, then the supply of gasoline will decrease as a result. show that the vector field f=yz1i xz1jxyz2k is conservative by finding a scalar potential f . a restaurant purchased a kitchen appliance for $3,700. it has a salvage value of $120 at the end of eight years. use the straight line method to find the depreciation charges per year. Rosh Corporation is planning to issue bonds with a face value of $820,000 and a coupon rate of 6 percent. The bonds mature in four years and pay interest semiannually every June 30 and December 31. All of the bonds will be sold on January 1 of this year. (FV of $1, PV of $1, FVA of $1, and PVA of $1) (Use the appropriate factor(s) from the tables provided. Round your final answers to nearest whole dollar amount.) Required: Compute the issue (sales) price on January 1 of this year for each of the following independent cases: a. Case A: Market interest rate: 6 percent. Issue price $ 820,000 b. Case B: Market interest rate: 4 percent. Issue price c. Case C: Market interest rate: 8 percent. Issue price how many moles are in a 2.70 cm 2.70 cm 2.70 cm cube of copper? Read this sentence. True or false. The meaning of the word personally is what is done specifically by an individual.He would personally organize a train ride and lunch for a large group. A. TrueB. False The combustion of hydrogen in the presence of excess oxygen yields water:2H2 (g) + O2 (g) 2H2O (l)The value of S for this reaction is ________ J/Kmol.Thermodynamic Quantities for Selected Substances at 298.15 K (25 C)Substance Hf (kJ/mol) Gf (kJ/mol) S (J/Kmol)Carbon C (s, diamond) 1.88 2.84 2.43C (s, graphite) 0 0 5.69C2H2 (g) 226.7 209.2 200.8C2H4 (g) 52.30 68.11 219.4C2H6 (g) -84.68 -32.89 229.5CO (g) -110.5 -137.2 197.9CO2 (g) -393.5 -394.4 213.6Hydrogen H2 (g) 0 0 130.58Oxygen O2 (g) 0 0 205.0H2O (l) -285.83 -237.13 69.91A. -405.5B. +265.7C. +405.5D.-326.3E. -265.7 what is the focal length (in m) of a makeup mirror that has a power of 1.70 d? Which is the correct statement regarding the shear curve in segment AB? It is a linear curve that starts at zero and has positive increasing slope It is a quadratic curve that starts at zero and has a negative increasing slope It is linear curve that starts at a nonzero value and has a negative increasing slope It is a quadratic curve that starts at zero and has a positive increasing slope It is a linear curve that starts at zero and has a negative increasing slope you are conducting an offensive mission; how would you execute it with audacity? the full immunization technique is designed to work for any change in the interest rate. (True or False) solve for if 8sin 3=43 3 and 0