The equilibrium for the reaction between (ch3)2nh a weak base

Answers

Answer 1

The equilibrium for the dissolution of the weak base is ;(CH3)2NH(aq) + H2O(l) ⇄ (CH3)2NH3^+(aq) + OH^-(aq)

What is a weak base?

A weak base is one that does not ionize completely in solution. As such, a weak base will have a very low base dissociation constant Kb reflecting its minimal dissociation in solution.

The question is incomplete hence we are are unable to work out the equilibrium but in solution it will look like this;

(CH3)2NH(aq) + H2O(l) ⇄ (CH3)2NH3^+(aq) + OH^-(aq)

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Answer 2

The equilibrium for the reaction between (Ch₃)2NH of the weak base is (CH₃)2NH(aq) + H₂O(l) ⇄ (CH₃)2NH₃⁺(aq) + OH⁻(aq).

What are weak bases?

A weak base is one that does not completely dissociate in water.

It leaves only a small proportion of hydroxide ions and the concerned basic radical in the resulting aqueous solution.

A large proportion of dissociated base molecules.

Thus, the equilibrium for the reaction is (CH₃)2NH(aq) + H₂O(l) ⇄ (CH₃)2NH₃⁺(aq) + OH⁻(aq).

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Related Questions

which of these elements has the smallest atomic radius

Answers

This needs more details.
Helium has the smallest atomic radius

Describe how to express the rate of a chemical reaction

Answers

Answer: A “rate” is a measure of the speed of any change that occurs within an interval of time In chemistry, reaction rate is expressed as the amount of reactant changing per unit time. Example: 3 moles/year, or 5 grams/second

Explanation: A “rate” is a measure of the speed of any change that occurs within an interval of time In chemistry, reaction rate is expressed as the amount of reactant changing per unit time. Example: 3 moles/year, or 5 grams/second

Answer:

Chemical reaction rates are usually expressed as the concentration of reactant consumed or, the concentration of product formed per unit time.


Explanation:

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A gas mixture contains the following gases with the mole fractions indicated:
water (0.164), hydrogen (0.278), oxygen (0.455), and carbon dioxide (0.101). The
mixture also contains carbon monoxide. What is the mole fraction of carbon
monoxide? PLEASE HELP!

Answers

Hi there!

To find the mole fraction for the remaining compound (Carbon monoxide), we must remember that mole fractions add up to ONE.

We can subtract the mole fractions of all of the other gases from one to solve for the mole fraction of carbon monoxide.

1 - 0.164 - 0.278 - 0.455 - 0.101 = 0.002

Which shows that friction is undesirable?
a. Pushing furniture
b. Lighting a matchstick
c. Walking on wet floors
d. Approaching a spotlight

Answers

C. Walking on wet floors shows that Friction is undesirable

Name an element in the third period (row) of the periodic table with a total of 4 3p electrons

Answers

Answer:

sulfur

Explanation:

sulfur has 4p electrons.

phosphorus has 3p electrons.

The question is asking which one has 4

The element in the third period (row) of the periodic table with a total of 4 3p electrons is sulfur (S).

What is sulfur?

Sulfur is a chemical element that is present in the third of the periodic table.

Its atomic number is 16.

The electronic configuration of sulfur is [tex]\rm [Ne]\; 3S_2\; 3P_4[/tex]

So, sulfur contains 4 electrons in its last orbital.

Thus, the element in the third period (row) of the periodic table with a total of 4 3p electrons is sulfur (S).

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Write balanced chemical equations for dissociation of the following weak acids and identify their conjugate bases: phosphoric acid (H3PO4), formic acid (HCO2H), and boric acid (H3BO3).

Answers

The conjugate base of an acid is the negative ion that it forms in solution. The conjugate base of each of the following acids are indicated below;

1) H3PO4(aq) ⇄ H^+(aq) + H2PO4^-(aq)(conjugate base)

2) HCO2H(aq)  ⇄ H^+(aq) + HCO2^-(aq) (conjugate base)

3) H3BO3(aq)  ⇄ H^+(aq) + H2BO3^- (aq) (conjugate base)

What is a conjugate base?

When an acid is dissolved in water it is dissociated into ions. The conugate base of the acid is the negative ion that it forms in solution. Let us now see the conjugate base of each of the ions formed;

1) H3PO4(aq) ⇄ H^+(aq) + H2PO4^-(aq)(conjugate base)

2) HCO2H(aq)  ⇄ H^+(aq) + HCO2^-(aq) (conjugate base)

3) H3BO3(aq)  ⇄ H^+(aq) + H2BO3^- (aq) (conjugate base)

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The part of an atom that is responsible for the bonding of atoms is

Answers

Answer:

the answer is electrons

Explanation:

electrons are responsible for the chemical bonding.

In a molecule of water (H2O), two hydrogen atoms are each bonded to one oxygen atom. What forms each of the two bonds?

Answers

the two bonds are formed with the help of covalent bonds

Explain ferromagnetism. Include what is happening to the electron in the atoms

Answers

In Ferromagnetism, materials are changed into permanent magnets.

What is Ferromagnetism?

Ferromagnetism is a process in which specific materials are turned into permanent magnets. The spins of electrons are shifted and electrons become more aligned and sequence with the direction of the field.

So we can conclude that in Ferromagnetism, materials are changed into permanent magnets.

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Zinc reacts with iron (iii) chloride yielding zinc chloride plus iron

Answers

Answer:

I don't see a specific question, so I'll make a few comments and hope that answers the reason for the post.

Explanation:

Zinc(Zn) does react with iron chloride, since zinc is a more reactive metal than the iron.

When Zn is introduced to an iron (III) chloride solution, the Zn disoplaces the Fe atom in a displacement reaction.

The chemical equation of the reaction:

Zn + Fe(III)Cl3 → ZnCl3 + Fe

Energy is often realeased in this type of reaction, since the resulting chemical products have a lower energy that the reactants.

There are several metals more reactive than iron.  One of the more interesting examples of a highly exothermic reaction with iron chloride (rust) is the reaction of aluminum with iron chloride.  `This is highly exothermic and is labelled a thermite reaction.  It provides a spectacular flame that is not enough to weld railroad tracks together.

Round the mmHg readings to the nearest whole number. Round the kPa readings to the nearest tenth. Round the atm readings to the nearest hundredth. Convert a pressure of 2.29 atm to ____ mm Hg.

Answers

The pressure of 2.29 atm  can be converted to [tex]1740.4 mm Hg.[/tex]

What is conversation?

Conversation is a way of writing a value in another unit, it helps to reduce large values by using a unit.

It should be noted that 1 atm. =760.0 mm Hg

We were given 2.29 atm, the we can convert it to  mm Hg. as;

[tex][ 2.29 atm* 760.0 mmHg / atm.][/tex]

= 1740.4 mm Hg.

Therefore, The pressure of 2.29 atm  can be converted to [tex]1740.4 mm Hg.[/tex]

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Which statement best describes the use of a chemical indicator in a titration? It must be measured to the nearest 0. 01 mL. It must be colored in the acid solution. It must measure pH directly at all pH values. It must change color near the equivalence point.

Answers

The statement that best describes the use of a chemical indicator in a titration is it must change color near the equivalence point.

What are indicators?

Indicators are those compounds which are used in the titration process to estimate the presence of chemical entities in it.

In the titration process, indicator is added in the titration solution which changes its color when the reaction mixture goes towards the equivalence point and becomes disappear at that point.

Hence option (4) is correct.

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How many more atoms are there in 48g of C compared with 48.6g of Mg? Explain your answer.

Answers

Answer:

The number of carbon atoms is twice the number of magnesium atoms

10 A fixed quantity of gas is placed inside a container of fixed volume at a temperature of
27°C. The gas has a pressure, P.
Which expression shows the pressure of the gas at 57°C?
A P2=(27/57) P
B
P2=(57/27) P
P2=(300/330) P
с
D
P2=(330/300) P

Answers

A gas has a pressure P at 27 °C. To calculate its pressure at 57°C we use an expression derived from Gay-Lussac's law:

C) P2 = (300/330) P

What does Gay-Lussac's law state?

Gay-Lussac's law states that the pressure of a given mass of gas varies directly with the absolute temperature of the gas when the volume is kept constant.

Mathematically, it can be written as:

P/T = k

A gas has a pressure P at 27 °C and we want to find the expression to calculate its pressure at 57°C.

Step 1: Convert the temperatures to the Kelvin scale.

We do so by summing 273.15.

K = 27 + 273.15 = 300 K

K = 57 + 273.15 = 330 K

Step 2: Apply Gay-Lussac's law.

P2/330 = P/300

P2 = (300/330) P

A gas has a pressure P at 27 °C. To calculate its pressure at 57°C we use an expression derived from Gay-Lussac's law:

C) P2 = (300/330) P

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zz. Compound A is crystalline, has a high melting point, and is more conductive when dissolved. Compound B is highly conductive and can be hammered into different shapes. Compound
Cis not highly conductive and is a gas. Which of these compounds is covalent?
compound A
compounds
compound
Nane at these compounds is covalent

Answers

Answer:

Compound C is covalent.

Explanation:

Among the properties of a covalent compound is that it has poor conductivity and could possibly be a gas at room temperature.

Which units are used for weight? Give the full name, not the abbreviation.

Answers

Answer:

Gram, Kilogram, and Tonne

Explanation:

Answer:

The unit of measurement for weight is that of force, which in the International System of Units (SI) is the newton. For example, an object with a mass of one kilogram has a weight of about 9.8 newtons on the surface of the Earth, and about one-sixth as much on the Moon.

Explanation:

Isotopes are:

A. found in the nuclear reactions in
stars but not on Earth.
B. are only theoretical.
C. found in nature.
D. only formed in laboratories.

Answers

Isotopes are only formed in laboratories and is denoted as option D.

What are Isotopes?

This refers to an element which has the same atomic number but different mass number due to difference in number of neutrons.

They are also usually formed in laboratories through series of chemical reactions.

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Do the halogens tend to gain or lose electrons in chemical reactions? how many?

Answers

Explanation:

Halogens tend to gain one electron so that they can get a full outer level and be stable.

What increases the rate a solute dissolves in a solvent.

Answers

Answer:

Stirring

Explanation:

Stirring a solute into a solvent speeds up the rate of dissolving because it helps distribute the solute particles throughout the solvent. For example, when you add sugar to iced tea and then stir the tea, the sugar will dissolve faster.

Answer:

crushing particles of solute

Explanation:

when the concentration of NADH increases while the concentration of NAD+ decreases, will the electrochemical potential increase, decrease, or remain the same

Answers

When the concentration of NADH increases while the concentration of NAD+ decreases, the electrochemical potential however will increase

What is electrochemical potential?

Electrochemical potential can be defined as a measure of the difference between the average energy of the outermost electrons of the molecule or element in its two valence states.

What is NADP?

NADP is a coenzyme and simply has it full meaning as Nicotinamide Adenine Dinucleotide Phosphate

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Which of the following is a pure substance?
O A. Milk
O B. Salt
O C. Blood
O D. Candy bar

Answers

Answer:

A. Milk

Explanation:

Cause is basics. It's proved by scientific I watched on TV and my teacher told me. I am a 100% sure.Go ask to your mother how many litres you drink her milk per day.

What is the molarity of a solution formed when you add 200. Ml of water to 50. Ml of 5. 0 m hcl

Answers

The molarity of a solution formed when you add 200 mL of water to 50 mL of 5. 0 M HCl is 1.25M.

How to calculate molarity?

The molarity of a solution can be calculated using the following formula:

M1V1 = M2V2

Where;

M1 = molarity of a baseM2 = molarity of acidV1 = volume of baseV2 = volume of acid

M1 × 200 = 50 × 5

200M1 = 250

M1 = 250/200

M1 = 1.25M

Therefore, the molarity of a solution formed when you add 200 mL of water to 50 mL of 5. 0 M HCl is 1.25M.

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balance the equation
___NaBr + ___ Ca(OH)2 -----> ___CaBr2 + ___NaOH

Answers

Answer:

2NaBr + Ca(OH)2 ––> CaBr2 + 2NaOH

In an exothermic reaction, which condition will be true?

A.) Activation energy will be less than the energy of the reactants.
B.) Activation energy minus energy of the products will be greater than activation energy minus energy of reactants.
C.) Activation energy minus energy of the products will be less than activation energy minus energy of reactants.
D.) Activation energy will be less than the energy of the products.

Answers

B- activation energy minus energy of the products will be greater than activation energy minus energy of reactants is a true statement

Activation energy will be less than the energy of the products in an exothermic reaction. Therefore, option (D) is correct.

What is exothermic reaction?

In this type of reaction, the energy of the products is lower than the energy of the reactants. As a result, the difference in energy is released as heat or light, which can be detected by measuring the temperature or observing the light emitted during the reaction.

Exothermic reactions occur spontaneously, meaning they do not require an external energy source to start the reaction. Common examples of exothermic reactions include combustion, oxidation, and neutralization. These reactions often involve the formation of stronger bonds between atoms or molecules, which releases energy in the form of heat or light.

Exothermic reactions play an important role in many natural and industrial processes, including respiration, photosynthesis, and the production of electricity in power plants.

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A sample of carbon dioxide gas at 125°c and 248 torr occupies a volume of 275 l. What will the gas pressure be if the volume is increased to 321 l at 125°c?.

Answers

The new pressure of gas when the volume of the gas is increase to 321 L at 125 °C is 212.46 torr

Data obtained from the question Initial pressure (P₁) = 248 torrInitial volume (V₁) = 275 LTemperature = 125 °C = constant New Volume (V₂) = 321 LNew pressure (P₂) =?

How to determine the new pressure

The new pressure of the gas can be obtained by using the Boyle's law equation since the temperature is constant. This is illustrated below:

P₁V₁  = P₂V₂

248 × 275 = P₂ × 321

68200 = P₂ × 321

Divide both side by 321

P₂ = 68200 / 321

P₂ = 212.46 torr

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Consider the equation for the formation of water. 2h2 o2 right arrow. 2h2o what is the theoretical yield of h2o if 130 g of h2o is produced from 18 g of h2 and an excess of o2? 18 g 81 g 130 g 160 g

Answers

The theoretical yield is the reaction yield that measures the product of the reaction from the conversion of the limiting reagent. The theoretical yield is 160 gm.

What is mass?

Mass or the theoretical yield is the result of the multiplication of mole and the molar mass of the compound.

The reaction between hydrogen and oxygen is shown as,

[tex]\rm 2H_{2} + O_{2} \rightarrow 2H_{2}O[/tex]

Moles of water is calculated as:

[tex]\begin{aligned}\rm moles &= \rm \dfrac{mass}{molar\; mass}\\\\&= \dfrac{18}{2}\\\\&= 9\;\rm moles\end{aligned}[/tex]

The theoretical yield of water is calculated as:

[tex]\begin{aligned}\rm \text{weight of water} &= \rm moles \times molar \; mass\\\\&= 9 \times 18\\\\&= 162 \;\rm gm\end{aligned}[/tex]

Therefore, option D. 160 gm is the theoretical yield of water.

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When the carbonator adds CO 2 to the solution, a ________ is added to the reaction, which pushes the reaction in the
________ direction.
a. product, forward
b. product, reverse
c. reactant, forward
d. reactant, reverse

(CO2 is added to H2CO3)

Answers

When the product is added to the solution, it will shift the reaction forward.

What is Carbonation?

Carbonation is a form of chemical reaction in which carbon dioxide is added to a solution to give carbonates, bicarbonates, and carbonic acid. In chemistry, the term is used in place of carboxylation to form carboxylic acids

When a product is added to a system, the equilibrium will shift to the left, so as to produce more reactants but if the reactants is remove from the system, equilibrium will also be shifted to the left.

Therefore, When the product is added to the solution, it will shift the reaction forward.

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Based on the graph what is the approximate half-life of the reaction shown below

Answers

I just learned about half-life so I would be willing to help. However, I don’t see the graph.

Round the mmHg readings to the nearest whole number. Round the kPa readings to the nearest tenth. Round the atm readings to the nearest hundredth. Convert a pressure of 1.76 atm to _____ torr.

Answers

i love jesus and i love my mommy

What causes “gaps in the rock record” and how is that described?

Answers

Answer:

An unconformity is a widespread surface separating rocks above and below, which represents a gap in the rock record. Unconformities occur when either erosion wears away rocks, or rock deposits never form. Therefore, a time gap exists between when the rocks below the unconformity formed and when those above it formed.

Explanation:

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