Coffee Cup Calorimeter Problem - General Chemistry

This video discusses the coffee-cup calorimeter problem in general chemistry. It provides 2 examples.

Here are the practice problems:
In a coffee-cup calorimeter, 100ml of 0.10M AgNO3 and 100ml of 0.100M HCl are mixed together according to the following reaction:
Ag+(aq) + Cl-(aq) ---Ag(s)
Both solutions were initially at 24.8C and the final temperature is 26.4C. Calculate the enthalpy change of this reaction in Kj/mol. Assume the density of the solution is 1g/ml and the specific heat capacity is the same as pure water.

2. In a coffee cup calorimeter, 1.85g of NH4NO3 is dissolved in 86g of water at a temperature of 27.5C. Eventually, the temperature decreased to 25.1C. Calculate the enthalpy change for this reaction in Kj/mol.

NH4NO3 ----- NH4+(aq) + NO3- (aq)

Coffee Cup Calorimeter Problem - General Chemistry chemistry jobs
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