Question 1

Which of the following salts, when dissolved in water, would produce a solution that is NOT pH-neutral? (Select all that apply.)

Accepted Answer

Rb2C2O4(s)

Question 2

Given the list of strong acids (HCl, HBr, HI, HNO3, HClO4, H2SO4) and strong bases (LiOH, NaOH, KOH, RbOH, CsOH, Ba(OH)2, Sr(OH)2), which salt below is most likely to create a basic solution when dissolved in water?

Accepted Answer

Ba(C2H3O2)2(s)

Question 3

Which salt would create an acidic solution when dissolved in water?

Accepted Answer

NH4Br(s)

Question 4

Which of the following mixtures forms a buffer solution?

Accepted Answer

0.30 M NH3 & 0.30 M NH4Cl

Question 5

Which of the following combinations would NOT act as a buffer?

Accepted Answer

0.10 M HCl & 0.10 M NaCl

Question 6

Which of the following best explains why Na2CO3(s) produces a basic solution in water?

Accepted Answer

$$CO3^2- $$hydrolyzes to form OH- ions.

Question 7

Which of the following mixtures would result in a buffer with a pH greater than 7?

Accepted Answer

0.05 M NaOCl & 0.05 M HOCl

Question 8

Which of the following salts is formed from a weak acid and a strong base?

Accepted Answer

Ba(C2H3O2)2(s)

Question 9

A solution is made by mixing 0.10 M LiOH and 0.10 M NH3. What is the resulting solution's pH?

Accepted Answer

Strongly basic

Question 10

Which of the following mixtures would best resist a change in pH upon addition of a small amount of HCl?

Accepted Answer

0.30 M NH3 & 0.30 M NH4Cl

Question 11

Which of the following is NOT a buffer solution?

Accepted Answer

0.10 M HCl & 0.10 M NaCl

Question 12

Which of the following salts would create an acidic solution when dissolved in water?

Accepted Answer

NH4Br(s)

Question 13

Which of the following mixtures would create a buffer with a pH less than 7?

Accepted Answer

0.10 M NH3 & 0.15 M NH4Cl

Question 14

Which of the following is a buffer made from a weak acid and its conjugate base?

Accepted Answer

0.15 M HC2H3O2 & 0.10 M NaC2H3O2

Question 15

Which of the following mixtures would NOT act as a buffer?

Accepted Answer

0.10 M HCl & 0.10 M NaCl

Acidic, Basic, and Neutral Salts; Buffer Solution Identification

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