Why does calcium carbonate react slower with ethanoic acid than hydrochloric acid?

[wayneo]

explain why the reaction lumps of calcium carbonate is much slower with 0.1 M ethanoic acid than with 0.1 M hydrochloric acid at the same temperature.

any ideas?

 

[Hootenanny]

HINT: Think about what actual reacts with the calcium carbonate (think ions)
BIG HINT: One is a weak acid and the other is a strong acid.

~H

 

[GCT]

Consider how carbonate reacts with each respective acid in the aqueous solutions, the equilibrium pH of each respective acid solution, Ksp equation, common ion effect.