What would happen if small amounts of 1M HNO3 were added to a solution of 1M...

Question

Question

What would happen if small amounts of 1M HNO3 were added to a solution of 1M HC2H3O2?

1-The percent ionization of HC2H3O2 will go up.

2- The acid ionization constant for HC2H3O2 will go up

3- The acid ionization constant for HC2H3O2 will go down.

4- The percent ionization of HC2H3O2 will go down.

5- The percent ionization for HC2H3O2 will remain unchanged

science chemistry

Answer 1

Answer #1

HNO3 is a strong acid and it is completly dissociated in solution

HNO3+H2O ====== H3O+ + NO3-

but HC2H3O2 being a weak acid is partially dissociated

HC2H3O2 + H2O ====== H3O+ + C2H3O2-

so if small amount of 1 M HNO3 is added to 1M solution of HC2H3O2 then due to common ion effect its amount of ionization will decrease.

the answer is 4) The Percent ionization of HC2H3O2 will go down.

Answer 2

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