When can a salt act as a buffer? Give an example.

answer

watching

2,009

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

Tod ThielLv2

29 Sep 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

Please type out the questions, ty

Give the conjugate acid or base of the following:

(a) conjugate base of HC2H3O2

(b) conjugate acid of CN-
(c) conjugate base of HSO4
(d) conjugate acid of CO3

3) What is a buffer? How is a buffer prepared?

4) A buffer solution was prepared using the conjugate acid-base pair acetic acid and acetate

ions. Write the chemical equations showing the reactions that take place when

(a) H+ ions are added to the buffer solution

(b) OH- ions are added to the buffer solution

5) Write the neutralization reaction (in net ionic form) for the titration of acetic acid (CH3COOH)

with sodium hydroxide (NaOH).

6) If you have one mole of buffer that was exactly 50% acetic acid and 50% acetate ion, how much

NaOH would it take to neutralize all of the buffer?

7) When can a salt act as a buffer? Explain.

An amphoteric salt is one that contains an anion that can act as either an acid or a base in water. Baking soda, NaHCO3, is an example. By combining the ionization and hydrolysis reactions of the anion, we get the principle reaction that occurs when this salt is dissolved in water.2HCO3- --->CO3 2- +H2CO3the ph for such a solution is pka1+pka2/2Calculate the pH of NaHCO3 solution

What are amino acids? How can an amino acid act as buffer?