When solutions containing silver ions and chloride ions are mixed, silver chloride precipitates: ag+(aq)+cl−(aq)→agcl(s)δh=−65.5kj. calculate δh for formation of 0.490mol of agcl by this reaction.

The ΔH for the formation of 0.490 mol of AgCl is - 32.095 kJ.

Explanation:

Ag⁺(aq)+Cl⁻(aq)→ AgCl(s) ΔH=−65.5kJ

We need to consider that the value of ΔH given is for each mol of AgCl formed.

1 mol AgCl - 65.5 kJ

0.490 mol AgCl      x

x = - 32.095 kJ