The addition of HCl(aq) to a silver nitrate solution precipitates silver chloride according to the
following reaction:

AgNO3 (aq) + HCl (g) AgCl (s) + HNO3 (aq) ΔH rxn = ?

a. When 50.00mL of 0.100 M AgNO3 is combined with 50.00 mL of 0.100 M HCl in a
coffee-cup calorimeter, the temperature of solution changed from 23.40°C to 24.21 °C.
Calculate ΔHrxn for this reaction as written.
Assume the density of the solution is 1.00g/mL and the specific heat capacity Cs = 4.18
J/g.°C.

Question

The addition of HCl(aq) to a silver nitrate solution precipitates silver chloride according to the 
following reaction: 
 
AgNO3 (aq) + HCl (g) AgCl (s) + HNO3 (aq) ΔH rxn = ? 
 
a. When 50.00mL of 0.100 M AgNO3 is combined with 50.00 mL of 0.100 M HCl in a 
coffee-cup calorimeter, the temperature of solution changed from 23.40°C to 24.21 °C. 
Calculate ΔHrxn for this reaction as written. 
Assume the density of the solution is 1.00g/mL and the specific heat capacity Cs = 4.18 
J/g.°C.