Chapter 14 Acids and Base quiz

Which of the following statements about acids are true?

(1) Acids corrode some, but not all, metals

(2) All acids are strong acids

(3) Some ions are also acids

• 1, 2, and 3

• 1 and 3 only

• 1 and 2 only

• 2 and 3 only

The Arrhenius definition of an acid is:

• produces H+ in solution

• a proton donor

• a proton acceptor

• produces OH- in solution

What is the conjugate base of HNO₃?

• HNO₃^-1

• NO₃OH

• NO₃^-

• H₂NO₃⁺

What is the conjugate acid of NO₃^-1?

• HNO₃

• NO₂^-

• NO₃^-2

• HNO₂

What is the concentration of [H₃O⁺] if pH= 2.50?

• 2.0 x 10^-5 M

• 3.2 x 10^-3 M

• 2.50 x 10^-3 M

• 2.50 x 10^-14 M

What is the pH of a solution whose pOH is 11.8 ?

What is true about a buffer?

• it resists changes to pH

• consists of a weak acid and its conjugate base

• consists of a strong acid and its conjugate base

What is the pH of a solution whose [H₃O⁺] is 0.04043 (pH in 3 sig figs)

If 25.00 mL of 0.5638 M KOH is used to neutralized 26.73 mL of HCl, what is the concentration of HCl?

How many mL of 0.7666 M KOH is needed to neutralize 28.28 mL of 0.5000 M HCl?