contestada

1. Addition of which of the following will increase the solubility of CaCO3 in water? Consider the equilibrium process:
CaCO3(s) <-------> Ca2 +(aq) + CO32-(aq)
Carefully consider common ions, and whether any species present in solution can react with the additives.
Select all that apply.
Group of answer choices:
a. Na2CO3
b. HCl
c. NaHSO4

Respuesta :

pstnonsonjoku

Answer: HCl

Explanation:

calcium carbonate dissolves in HCl acid producing CO 2 gas. It will not dissolve in pure water. The Ksp for calcium carbonate in water is 3.4 x 10-9 moldm-3 which is very low. What takes place here is actually a chemical reaction:

CaCO 3 (s) + 2HCl(aq) → CaCl 2 (aq) + H 2CO 3(aq)

This reaction accounts for the solubility of the Calcium carbonate in HCl and not in pure water.

HCl, this increase the  solubility of CaCO3 in water.

Information regarding the ions:

Calcium carbonate dissolves in HCl acid-producing CO 2 gas. It will not dissolve in pure water.  The Ksp for calcium carbonate in water is  3.4 x 10-9 modem-3 i.e. very low.

CaCO 3 (s) + 2HCl(aq) → CaCl 2 (aq) + H 2CO 3(aq)

So, This reaction accounts for the solubility of the Calcium carbonate in HCl but not in pure water.

Find out more information about the  Water here: brainly.com/question/4381433?referrer=searchResults

Otras preguntas