b. at what stage of the isolation process was magnesium metal separated from benzoic acid? write a one-paragraph explanation. be a specific as you can.

In this reaction, the theoretical yield of aluminum oxide is 77.27 g. The percent yield of aluminum oxide is 78.7%, which is calculated by dividing the actual yield (61.0 g) by the theoretical yield (77.27 g) and multiplying by 100.

The percent yield of a reaction is an important measure of its efficiency. It is calculated by dividing the actual yield of a product by the theoretical yield and multiplying by 100. A higher percent yield indicates that more of the desired product was produced in the reaction, and that the reaction was more efficient.

The percent yield of a reaction can be affected by several factors, such as the amount of reactants present, the temperature at which the reaction is conducted, and the presence of catalysts or other substances that can affect the rate of the reaction.

Learn more about percentage yield of aluminum oxide:

https://brainly.com/question/29081861

#SPJ4

The mass (g) of Ca(NO3) 2 required to prepare 125.00mL of 0.1528 M NO3- solution is 1.57g of Ca(NO3)2

V x M = mass

0.125L x 0.1528mole/L = 0.0191mole of NO3-

2 NO3-/Ca(NO3)2

then 1/2 x Ca(NO3)2 mw/ NO3-mw

and 1/2 x 0.0191mole = 0.00956 mole of Ca(NO3)2

0.00956mole x 164.0878g/mole = 1.57g of Ca(NO3)2

In chemistry, an answer is a unique kind of homogeneous aggregate composed of or more substances. In one of these combinations, a solute is a substance dissolved in another substance, known as a solvent. If the appealing forces among the solvent and solute debris are more than the appealing forces retaining the solute particles collectively, the solvent debris pulls the solute debris aside and surrounds them.

Those surrounded by solute debris then move away from the solid solute and out into the answer. the combination method of an answer takes place at a scale wherein the outcomes of chemical polarity are involved, ensuing in interactions that can be specific to solvation. the answer commonly has the state of the solvent when the solvent is the bigger fraction of the combination, as is typically the case. One essential parameter of an answer is awareness, which is the degree of the amount of solute in a given quantity of solution or solvent. The term "aqueous answer" is used when one of the solvents is water.

To learn more about Solution visit here:

brainly.com/question/1616939

#SPJ4

Complete Question:

What is the mass (g) of Ca(NO3) 2 required to prepare 125.00mL of 0.1528 M NO3- solution?

According to the question, 0.343 grams of hydrogen chloride are produced.

What is hydrogen chloride?

Hydrogen chloride is a colorless, corrosive gas with a pungent odor. It is a hydrogen halide and a diatomic molecule, consisting of one atom of hydrogen and one atom of chlorine.

NaCl + H2SO4 → Na2SO4 + HCl

Since the amount of sodium chloride is given (20 g), we can calculate the amount of hydrogen chloride produced.

Since 1 mole of sodium chloride reacts with 1 mole of sulfuric acid, the number of moles of sodium chloride and sulfuric acid used in the reaction will be the same.

We can calculate the number of moles of sodium chloride used in the reaction by dividing the mass of sodium chloride (20 g) by its molar mass (58.44 g/mol).

Number of moles of sodium chloride used = 20 g / 58.44 g/mol = 0.343 moles

Since the number of moles of sodium chloride used is 0.343, the number of moles of hydrogen chloride produced will also be 0.343.

To learn more about hydrogen chloride
https://brainly.com/question/20728408

#SPJ4

The balanced equation for the reaction of ammonia and oxygen using the smallest whole-number coefficients is given below:

4 NH₃ (g) + 3 O₂ (g) --->  2 N₂(g) + 6 H₂O (g) + energy

Ammonia, NH₃ (g), can be used as a substitute for fossil fuels in some internal combustion engines.

The reaction between ammonia and oxygen in an engine is represented by the unbalanced equation below.

NH₃ (g) + O₂ (g) --->  N₂(g) + H₂O (g) + energy

Balancing the equation for the reaction of ammonia and oxygen involves using the smallest whole-number coefficients placed before the reactants and products.

Learn more about balanced equations at: https://brainly.com/question/26694427

#SPJ1

The benefits of transmuting metals include having access to rare and valuable materials as well as reduced environmental impact.

Some losses from transmuting metals include the high cost and the safety concerns from radiation.

Transmuting metals involves the transformation of one metal into another by means of nuclear reactions. transmuting metals can provide access to rare and valuable metals that are in short supply, such as platinum and gold.

The process of transmuting metals can be expensive, especially if done on a large scale. The process of transmuting metals involves the use of nuclear reactions, which can pose a risk of radiation exposure.

Find out more on transmuting metals at https://brainly.com/question/11097938

#SPJ1

Answer:

What are the benefits of transmuting metals?

Although in the present state of science no chemist can say that lead and gold do not contain the same elements.

What can you gain from transmuting metals?

To the alchemists of old, this meant the conversion of one physical substance into another, particularly base metals such as lead into valuable silver and gold.

What can you lose by transmuting metals?

A transmutation entails a change in the structure of atomic nuclei and hence may be induced by a nuclear reaction (q.v.), such as neutron capture, or occur spontaneously by radioactive decay, such as alpha decay and beta decay (qq. v.).

it is limited by the costly and cumbersome need to separate long-lived fission product isotopes before they can undergo transmutation. also, some long-lived fission products, due to their small neutron capture cross sections, are unable to capture enough neutrons for effective transmutation to occur.

Have a wonderful day! :-)

#SPJ1

The concentration of the potassium dichromate used to make the new solution is 0.0763 M.

The total volume of the new solution is 379 + 448 = 827 mL.

The total amount of potassium ions in the new solution is 0.713 * 827 = 594.491 mol.

The amount of potassium bromide in the new solution is 0.12 * 379 = 45.48 mol. The amount of potassium dichromate in the solution is 594.491 - 45.48 = 549.011 mol.

The concentration of potassium dichromate in the solution is 549.011 / 448 = 0.0763 M.

The concentration of the potassium dichromate used to make the new solution is 0.0763 M.

Learn more about concentration here:

https://brainly.com/question/10725862

#SPJ4

The empirical formula of a compound is the simplest whole-number ratio of atoms in a molecule of the compound. the possible empirical formula for ch2 among given choices is c. C12H22.

The molecular formula, on the other hand, gives the actual number of atoms of each element in a molecule of the compound. The molecular formula can be a multiple of the empirical formula.

In this case, the empirical formula of the compound is CH2, which means it contains one carbon atom and two hydrogen atoms.

Therefore, the molecular formula of the compound could be C2H4, C4H8, or any other multiple of CH2, but it cannot be C7H14 or C12H22 because these molecular formulas are not multiples of CH2.

So, the correct answer is: c. C12H22.

Learn more about empirical formula here:

https://brainly.com/question/21280037

#SPJ4

The number of moles in butane C4H10 in 151gm of butane is 2.605 moles.we can do this with the help of molecular weights of C,H.

To calculate the number of moles in 151 grams of butane (C4H10), we need to determine the molecular weight of butane. The molecular weight of butane can be calculated using the atomic masses of its elements:

1 mole of C = 12 g 1 mole of H = 1 g

So, the molecular weight of butane can be calculated as: 4 moles of C * 12 g/mole + 10 moles of H * 1 g/mole = 4 * 12 + 10 * 1 = 48 + 10 = 58 g/mole

Now that we know the molecular weight of butane, we can use it to calculate the number of moles in 151 grams of butane:

151 g of butane / 58 g/mole = 2.605 moles

Therefore, there are 2.605 moles of butane in 151 grams of butane.

Learn more about butane here:

https://brainly.com/question/14818671

#SPJ4

Answer:

I agree with the statement that gas particles do not respond to heat the same way people do. Gas particles do not feel the heat in the same way as people do because they are not conscious and do not have a nervous system that allows them to perceive temperature. Instead, the behavior of gas particles is governed by the laws of thermodynamics, which describe how temperature and energy are related to the movement of particles.

For example, when a gas is heated, the particles within it will gain kinetic energy and move more rapidly. This increased motion causes the gas to expand and, if confined, the pressure within the container will increase. This is because the particles are colliding more frequently and with greater force with the container walls. In contrast, when a person is exposed to heat, their body will respond by sweating, which cools the skin by evaporation. The person may also feel uncomfortable or experience other physiological responses to the heat.

Therefore, while both gas particles and people can be affected by heat, their responses are different due to the fundamental differences in their physical and biological properties.

Same number of protons and different number of neutrons.

Oxygen is a chemical element with 8 protons. It is capable of achieving a noble gas electronic configuration by accepting two electrons. Oxygen is important for many living organisms.

Oxygen-16 and oxygen-18 differ in the number of neutrons in their nuclei. Oxygen-16 has 8 neutrons, while oxygen-18 has 10 neutrons. Oxygen-16 and oxygen-18 have the same number of protons and electrons. Both neutrons and protons have mass, so changing the number of neutrons changes the mass of oxygen. These elements with different numbers of neutrons are referred to as isotopes. Both oxygen-16 and oxygen-18 are stable isotopes of oxygen and are not radioactive.

To know more about the Oxygen, here

brainly.com/question/24259144

#SPJ4

Therefore, there are 73.3 grams of sodium in the final container.

Sodium chloride (NaCl) is a neutral compound, meaning it is neither acidic nor basic. It is a salt formed by the combination of sodium (Na+) and chloride (Cl-) ions, which have a neutral charge and therefore do not affect the pH of a solution.

Firstly, the number of moles of sodium in the solution will be:

n = C * V = 5.72 M * 564.2 mL = 3.21 moles

Next, we convert the number of moles of sodium to grams:

mass = n * atomic mass = 3.21 moles * 22.99 amu/mole = 73.3 grams

To know more about sodium visit :-

brainly.com/question/29327783

#SPJ1

The work associated with the expansion of a gas from 42.0 l to 79.0 l at a constant pressure of 14.0 atm is 518.0 atm-l

Work in chemistry is the energy or force required to perform a chemical reaction or to move an object from one place to another. Work in chemistry is most often associated with physical transformations such as changes in pressure, temperature, or volume. Chemical reactions also require work, such as when a reactant is converted into a product. Work is an important concept in thermodynamics, which is the study of energy and its transformation from one form to another. In thermodynamics, work is measured in joules or calories, which are units of energy. Work is also used to describe the energy needed to break or form chemical bonds, which is the basis of many chemical reactions.

Work = (Pressure)(Change in Volume)

Work = (14.0 atm)(79.0 l - 42.0 l)

Work = (14.0 atm)(37.0 l)

Work = 518.0 atm-l .

The work associated with the expansion of a gas from 42.0 l to 79.0 l at a constant pressure of 14.0 atm is 518.0 atm-l. This is because a pressure-volume expansion requires work, which we can calculate using the formula Work = (Pressure)(Change in Volume). In this case, we multiply the pressure by the change in volume to get the work.

To learn more about Work

https://brainly.com/question/26487364

#SPJ4

The  2.0 ml pipet transfers the 0.10 M stock solution to the 25.0 ml volumetric flask which is then diluted. The molar concentration of the diluted copper solution is 0.008 M.

The initial molar concentration, M₁ = 0.10 M

The initial volume , V₁ = 2.0 mL

The final molar concentration, M₂ = ?

The final volume, V₂ = 25.0 mL

The expression is as follows :

M₁ V₁ = M₂ V₂

M₂ = M₁ V₁ /  V₂

M₂ = (0.10 × 2 ) / 25

M₂ = 0.008 M

Thus, the molar concentration of the diluted copper solution is 0.008 M.

To learn more about concentration here

https://brainly.com/question/20910830

#SPJ4

The type of bond present in the picture below for both A and B are “polar covalent bond and "dipole-dipole attraction” respectively.

The ability to form molecules and crystals is made possible by a chemical bond, which is a strong attraction between atoms or ions. The bond may be created by the sharing of electrons in covalent bonds or by the electrostatic interaction between ions that have opposing charges.

Other forms of forces present in molecules of compounds are intermolecular forces such as dipole-dipole attraction" and hydrogen bonds.

Learn more about chemical bonds at: https://brainly.com/question/819068
#SPJ1

In the case of calcium fluoride, the unit cell shows one calcium ion and two fluoride ions, meaning the empirical formula is CaF2.

The empirical formula of a compound is the simplest whole number ratio of its constituent elements.

The empirical formula of a compound represents the simplest whole number ratio of atoms in a molecule. To find the empirical formula for calcium fluoride, we need to determine the ratio of calcium and fluoride ions in the crystalline lattice of fluorite. In the unit cell shown, there are equal numbers of calcium ions (darker spheres) and fluoride ions (lighter spheres). This means the ratio of calcium to fluoride is 1:1, which gives us the empirical formula of CaF2.

Learn more about empirical formula:

brainly.com/question/14044066

#SPJ4

The solution of sucrose would not conduct electricity, since sucrose is a non-ionic compound. The solutions of ammonia (NH3) and hydrochloric acid (HCl) would both conduct electricity, since ammonia and HCl are both ionic compounds.

When a substance is dissolved in water, it can form ions that can then conduct electricity. Ions are atoms or molecules that have an electric charge, and ionic compounds are those that contain both positively and negatively charged ions. Non-ionic compounds, such as sucrose, do not form ions when dissolved in water, and so they do not conduct electricity.

Learn more about non-electrical conductive solutions:

https://brainly.com/question/14301776

#SPJ4

The type and number of electrons transferred between the two elements depend on the location of each element in the periodic table. Generally, metals lose electrons to form cations, while nonmetals gain electrons to form anions.

Electrons are tiny particles that carry a negative charge and orbit the nucleus of an atom. They are the building blocks of matter, and their properties are the basis for understanding the behavior of all matter. Electrons are the smallest known particles, and have a mass that is approximately 1/1836th of a proton. Electrons are part of the electromagnetic force and are responsible for electrical, chemical, and optical behavior. Electrons can move from one atom to another, and this is what allows them to form bonds and create molecules. Electrons also form a cloud of negative charge around the nucleus of an atom, helping to keep the atom stable and together. The electrons of an atom can also interact with other atoms and particles, and this is what allows them to form compounds and materials.

To learn more about electrons

https://brainly.com/question/26084288

#SPJ4

The total mass of the solution is   0.100025 Kg. Hence, the concentration in parts per million is 246.93 ppm.

Parts per million or ppm is  a term used to express the concentration of a solution. The concentration of the a solution can be expressed in terms of the mass , volume or number of moles of the solute in the solution.

ppm of a solution = weight of solute in kg/weight of solution in kg ×10⁶.

Given , mass of solute lead nitrate = 0.025 g

mass of solvent = 100 g.

total mass of the solution = 100 + 0.025 = 100.025.g

mass in kg =   0.100025 Kg.

mass in kg of solute = 0.000025 Kg

ppm of solution  = 0.000025 kg/   0.100025 Kg ×10⁶. = 249.9 ppm.

Therefore, the concentration of the solution in ppm is 249.9 ppm.

Find more on ppm :

https://brainly.com/question/16727593

#SPJ1

Answer:

Tonicity depends only on the concentration of nonpenetrating solutes, so any solution of pure glucose will be hypotonic, no matter what its osmolarity, and tonicity describes only the change in cell volume at equilibrium.

A solution can be described as hyperosmotic if it has a higher concentration of solute particles compared to another solution, while a solution is described as hypotonic if it has a lower concentration of solute particles compared to another solution.

It may seem contradictory to say that a solution can be both hyperosmotic and hypotonic, but it is possible in certain situations.

One example is when comparing a solution with a higher concentration of non-permeating solutes to a solution with a lower concentration of non-permeating solutes. Non-permeating solutes are solutes that cannot pass through the cell membrane, and therefore do not affect the concentration of solutes inside the cell.

If a solution with a higher concentration of non-permeating solutes is placed next to a solution with a lower concentration of non-permeating solutes, the first solution is hyperosmotic, but if the cell is placed in the higher concentration solution, it is hypotonic to the cell.

This is because water molecules will move from the hypotonic solution (the one with lower concentration of solutes) to the hyperosmotic solution (the one with higher concentration of solutes), causing the cell to swell and potentially burst.

Know more about "hyperosmotic":-

https://brainly.com/question/13895898#

#SPJ11

Depending on the rate of oxygen diffusion into the cell mass and the rate of oxygen consumption by the cells, the greatest radius of a cell mass that may be tolerated before an anoxic core begins to form.

Radius is a mathematical term that refers to the length from a circle's or sphere's centre to its outside edge. It is a unit of length and is frequently represented by the letter "r". A circle's or a sphere's radius is a crucial characteristic since it affects the object's size and shape. The radius is also used to compute the circumference and area of a circle or sphere, two additional significant features. In addition to mathematics, the term "radius" is used to describe many facets of things and systems in a number of other disciplines, including biology, physics, and engineering.

Learn more about "radius" here:

https://brainly.com/question/13707540

#SPJ4

To calculate the number of molecules of lactic acid causing you pain in your leg muscles, you will need to use the molar mass of lactic acid (C3H6O3), which is 123 + 16 + 16*3 = 36 + 6 + 48 = 90 g/mol.

Then, divide the mass (5.0 g) by the molar mass of lactic acid to calculate the number of moles of lactic acid present: 5.0 g / 90 g/mol = 0.0556 moles.

Finally, multiply the number of moles by Avogadro's number (6.022 x 10^23) to calculate the number of molecules present: 0.0556 moles x (6.022 x 10^23 molecules/mole) = 3.33 x 10^22 molecules.

Learn more about lactic acid:

https://brainly.com/question/14279880

#SPJ4

The forms of energy are as follows:

Energy, in physics, refers to the capacity for doing work.

Energy exists in many different forms. Examples of these forms are:

Each form of energy can be converted or changed into the other forms.

Learn more about energy at: https://brainly.com/question/1932868

#SPJ1

The effect of radiation that occurs when ionizing radiation interacts directly with a radiosensitive molecule is called direct effect.

The radiolysis of water is an instance of an instantaneous impact of radiation publicity in humans. In the direct action, the radiation hits the DNA molecule directly, disrupting the molecular shape. Such structural alternate ends in cell harm or maybe cellular death. Damaged cells that live to tell the tale can also additionally later set off carcinogenesis or different abnormalities. A long-time period somatic impact is the harm to cells which can be always reproducing. These cells are the maximum touchy to radiation due to the fact any modifications made withinside the discern cell's chromosome shape can be transmitted to its daughters.

To learn more about chromosomes check the link below:

https://brainly.com/question/11912112

#SPJ4

Answer:

Although air is made up of particles too small to be seen, they still contain mass. These particles are made up of molecules which contain atoms that interact with each other and have a certain amount of mass, as well as kinetic energy. The mass of the gases in air can also be determined by measuring the gravitational pull they exert on objects in the atmosphere.

The mineral might be used for the panes of windows is the mica. The tests be performed to determine the mineral could be used for windows is the property of  Transparency of the solidified melt.

The Mica is the naturally occurring mineral that will forms from the many thin layers. It can be split into the layers so that the thin  can be use as  the windows. The transparency of the solidified melt will be the most important property of the mineral that is used in the modern window panes.

Thus, the mica is the mineral that can be used for the panes of the windows.

To learn more about minerals here

https://brainly.com/question/8265566

#SPJ4

Nitrous oxide is sometimes used as a source of oxygen gas. Therefore, the volume of N[tex]_2[/tex]O and O[tex]_2[/tex] are 2.22 L and  1.11L respectively.

Nitrous oxide (N2O), also known as dinitrogen monoxide, laughing gas, as well as nitrous, is a colorless gas with a pleasant, sweetish odor and taste that, when breathed, causes insensibility to pain, followed by moderate hysteria and, occasionally, laughter.

In 1772, the English scientist Joseph Priestley discovered nitrous oxide; another English chemist, Humphry Davy, later identified it as well and demonstrated its physiological function. Nitrous oxide is mostly used as an anesthetic in short-term surgical procedures; prolonged inhalation results in bad.

2N[tex]_2[/tex]O(g)→2N[tex]_2[/tex]O(g)+O[tex]_2[/tex](g)

volume of N[tex]_2[/tex]O = 2.22 L

volume of N[tex]_2[/tex]O =2.22 L

volume of O[tex]_2[/tex] = 1.11L

Therefore, the volume of N[tex]_2[/tex]O and O[tex]_2[/tex] are 2.22 L and 1.11L respectively.

To learn more about nitrous oxide, here:

https://brainly.com/question/14931378

#SPJ1

the percent recovery of ibuprofen in the recrystallization using ethanol is 73.07% to the nearest 0.01%.

The percent recovery of ibuprofen in the recrystallization using ethanol can be calculated as follows:

Percent recovery = (Mass of pure ibuprofen / Mass of crude ibuprofen) * 100

Plugging in the values, we have:

Percent recovery = (4.33 g / 5.93 g) * 100

Percent recovery = 73.07%

So, the percent recovery of ibuprofen in the recrystallization using ethanol is 73.07% to the nearest 0.01%. This value represents the fraction of the starting material that was recovered as pure product after the recrystallization process. A high percent recovery is desirable

Learn more about recrystallization here:

https://brainly.com/question/29215760

#SPJ4

The action of the molecular force acting between the particles of a body or substances to bind them together is the definition of cohesion.

The term "hydrogen bond" refers to the attraction force that connects the hydrogen atoms of two molecules of the same or different substance by electronegative atoms. Three dotted lines are used to depict this relationship.

The positive end of one molecule and the negative end of the other will attract one another and weak electrostatic force will form if many of these molecules are brought closer to one another. As a result, these molecules will band together to form a molecular duster.

To know more about molecular force here

https://brainly.com/question/24139316

#SPJ4

Cohesion refers to the attractive force between similar molecules, such as the hydrogen bonds between water molecules.

In the case of water, the hydrogen bonds between water molecules create a strong force that keeps the water molecules close together. This is what allows water to form a cohesive surface, like a drop of water, and to exhibit surface tension, which is the tendency of the surface of a liquid to act as if it were a stretched elastic membrane.

The cohesion of water molecules also contributes to the high boiling point of water compared to other similar-sized molecules, such as hydrogen sulfide. This is because breaking the hydrogen bonds between water molecules requires a significant amount of energy, which must be supplied as heat in order for the water to boil.

To know more about Cohesion here

https://brainly.com/question/29598400

#SPJ4

The study of reaction rates, how those rates change under various conditions, and the process by which a reaction proceeds is known as chemical kinetics. The following general characteristics can have an impact on a reaction's rate: the amount of reactants present. The rate increases with concentration.

The pace at which the products are created from the reactants in a chemical reaction is referred to as the rate of reaction. It provides some understanding of how quickly a reaction can occur. For instance, the combustion of cellulose in fire has a very high response rate and is completed in a fraction of a second.

learn more about chemical reaction

https://brainly.com/question/25769000

#SPJ1

The approximate mass of an atom can be determined by measuring the relative atomic mass (or atomic weight) of the element in question.

Atomic mass units (amu) are a unit of mass used to measure the mass of individual atoms. This is done by looking up the element in the periodic table, where the atomic weight is listed in the top right corner of each element's box. This number is typically given to one or two decimal places, and it represents the mass of an atom in amu.

The equation for calculating the approximate mass of an atom in atomic mass units is as follows:

Approximate Mass (amu) = Relative Atomic Mass (from periodic table)

learn more about Atomic mass units Refer:brainly.com/question/12149512

#SPJ4