Acid-Base Equilibria

Conjugate Acids

100

What is the conjugate acid of H₂O?

H₃O⁺

200

What is the conjugate acid of CN^-?

HCN

300

What is the conjugate acid of PH₃?

PH₄⁺

400

What is the conjugate acid of CO₃^-?

HCO₃^-

500

What is the conjugate acid of H₂S?

H₃S⁺

Conjugate Bases

100

What is the conjugate base of HCl?

Cl^-

200

What is the conjugate base of H₂O?

OH^-

300

What is the conjugate base of NH₄⁺?

NH₃

400

What is the conjugate base of HSO₃^-?

SO₃^2-

500

What is the conjugate base of HClO₄?

ClO₄^-

Chemical Equations

100

What is the base in the following reaction?

HCl + NH₃ —> NH₄⁺ +Cl^-

NH₃

200

What is the acid in the following reaction?

HCl + NH₃ —> NH₄⁺ + Cl^-

HCl

300

What is the conjugate acid in this equation?

H₂S + H₂O —> H₃O⁺ + HS^–

H₃O⁺

400

Complete the acid-base reaction:

HI + H₂O —>

I^- + H₃O⁺

500

Complete the acid-base reaction:

HNO₂ + HS^– —>

NO₂^- + H₂S

Vocabulary

100

A proton donor

What is a Brønsted-Lowry acid?

200

A proton acceptor

What is a Bronsted-lowry base?

300

What does a Bronsted-Lowry acid need to have?

A removable (acidic) proton

400

What does a Bronsted-Lowry base need to have?

A pair of non-bonding electrons

500

What causes an acid-base reaction to occur?

A proton transfer