answer

watching

views

18 Dec 2019

Solutions A and B contain the same concentration of weak acids HA1 and HA2, respectively. If the acid strength of solution A is stronger than that of solution B, which of the following statement is TRUE?

The pKa of weak acid HA1 is smaller than the pKa of weak acid HA2

The pH of solution A is bigger than the pH of weak acid B

The Ka of weak acid HA1 is smaller than the Ka of weak acid HA2

The pH of solution A is the same as the pH of solution B

answer

watching

153

views

For unlimited access to Homework Help, a Homework+ subscription is required.

You have 0 free answers left.
Get unlimited access to 3.8 million step-by-step answers.

Get unlimited access

Already have an account? Log in

Casey DurganLv2

31 Dec 2019

Unlock all answers

Get 1 free homework help answer.

Already have an account? Log in

Join us on Discord

Chemistry Study Group

Join now

Related questions

A buffer solution is made using a weak acid, HA, that has a pKa of6. If the pH of the buffer is 9, what is the ratio of AÃ¢â¬â toHA?

A-/HA=?

What is the pH of a solution which is 0.021 M in weak base and0.039 M in the conjugate weak acid (Ka = 7.1 Ãâ 10Ã¢â¬â6)?

pH=?

Please arrange the following acids in order of increasing strength.

H3PO4 < H2PO4- < HPO4 ^-2

H2PO4- < H3PO4 < HPO4 ^-2

HPO4-2 < H2PO4- < H3PO4

H3PO4 < HPO4 ^-2 < H2PO4-

All of these acids have the same strength

Consider the following Ka values;

acetic acid Ka[CH3COOH (aq)] = 1.80 x 10^-5

chloroacetic acid Ka[CH2ClCOOH (aq)] = 1.40 x 10^-3

hypochlorous acid Ka[HClO (aq)] = 2.90 x 10^-8

hydrofluoric acid Ka[HF (aq)] = 6.30 x 10^-4

formic acid Ka[HCOOH (aq)] = 1.80 x 10^-4

Which of the following is a correct statement?

Hypochlorous acid is the weakest acid listed

Acetic acid is a weaker acid than hypochlorous acid

Chloroacetic acid is the strongest acid on the list

Formic acid is a stronger acid than acetic acid

Formic acid is a weaker acid than hydrofluoric acid

Which of the following statements strong and weak acids is correct?

Weak acids completely dissociate in solution

Strong acids completely dissociate in solution

A 0.05 M solution of an acid is a weak acid

Strong acids only partially dissociate in solution

Weak acids completely dissociate in solution

Which of the following is not an Arrhenius acid, but is a Lewis acid??

Which of the following compounds is not amphoteric?

1. In a problem involving the mixing of a weak acid solution with a strong base solution (such as the titration of a weak acid with a strong base), before attempting to calculate the pH of the resulting solution, you must ___.

		A.) Determine which (the weak acid or strong base) is present in excess
		B.) Determine the pH of the weak acid solution.
		C.) determine th pH of the strong base solution
		D.) Determine the difference in volume of the acid and base solutions.

2.) Consider a weak acid , HA, for which the pKa is 5.826. The pH of a 0.28 M solution of this weak is is ___ at 25 oC. (Answer to three decimal places.)

3.) What is the pH of the solution resulting from mixing 33.07 mL of 0.183 M HA (pK_a = 4.876) with 14.82 mL of 0.100 M KOH? (answer to three decimal places)

pH = ___

4.)

What is the pH of a solution created by mixing 32.19 mL of 0.200 M HA (K_a = 1.81 x 10^-5 M) with 32.19 mL of 0.200 M KOH? (Answer to three decimal places)

pH = ___

5.)

What is the pH of a solution created by mixing 18.52 mL of 0.129 M HA (pK_a = 4.877) with 73.61 mL of 0.100 M KOH? (Answer to three decimal places)

pH = ___

Weekly leaderboard

Home

Homework Help 3,900,000

Chemistry 830,000

Unlock all answers

Related textbook solutions

Basic Chemistry

Principles of Chemistry Molecular Approach

Chemistry: Structure and Properties

Principles of Chemistry Molecular Approach

Chemistry: A Molecular Approach

Chemistry: A Molecular Approach

Principles of Chemistry: A Molecular Approach

Chemistry: The Central Science

Related questions

Weekly leaderboard