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Moderate

Changing Ionization

APCHEM-P8XKWU

Which of the following would decrease the percent ionization of $HCO_2H$, formic acid?

A

Diluting the solution by adding distilled water.

B

Increasing the autoionization of water.

C

Adding sodium formate to the solution.

D

Adding 0.1 M sodium hydroxide to the solution.