Question

What are the concentrations of Ag+, CN–, and MathProcessingError in a saturated solution of AgCN?

a) Ag+: high, CN−: low, MathProcessingError: low
b) Ag+: low, CN−: high, MathProcessingError: high
c) Ag+: low, CN−: high, MathProcessingError: low
d) Ag+: high, CN−: low, MathProcessingError: high

Answer 1

In a saturated solution of AgCN, the concentrations of Ag+, CN–, and Ag(CN)₂– are all low.

Step-by-step explanation:

In a saturated solution of AgCN, the concentrations of Ag+, CN–, and Ag(CN)₂– are all low.

This is because in a saturated solution, the solubility of AgCN is reached, meaning that no more AgCN can dissolve.

The equation for the dissociation of AgCN in water is: AgCN(s) ⇌ Ag+ (aq) + CN- (aq).

The concentrations of Ag+ and CN– in the solution are low because most of the AgCN has already precipitated and undergone the dissociation reaction.

The balanced equation for the formation of AgCN is: Ag+ (aq) + CN- (aq) → AgCN(s).