🧪 TheChemSolverUSNCO / General Chemistry
EquilibriumMCQ

Carbonic acid, H2CO3, is a diprotic acid for which K1 = 4.2 × 10–7 and K2 = 4.7 × 10–11. Which solut — Equilibrium Chemistry Question

Question

Carbonic acid, H2CO3, is a diprotic acid for which K1 = 4.2 × 10–7 and K2 = 4.7 × 10–11. Which solution will produce a pH closest to 9?

A.

0.1 M H2CO3

B.

0.1 M Na2CO3

C.

0.1 M NaHCO3

✓ Correct
D.

0.1 M NaHCO3 and 0.1 M Na2CO3

💬
Still have doubts about this question?
Practice more questions like this, completely free.

Practice USNCO / General Chemistry questions like this — free

4,000+ questions across AP Chemistry, USNCO, and IChO — all free, no signup required.

Explore AP Chemistry →Try Interactive Labs