The Student Room Group

Calorimetry

An excess of zinc powder was added to 50.00 cm^3 of aqueous silver nitrate solution, concentration 0.100moldm^-3. Temperature rose by 4.3 C. Calculate enthalpy change for the reaction:

Zn(s) + 2Ag+ (aq) = Zn2+ (aq) +2Ag (s)
Density = 1gcm^3
Specific heat capacity = 4.18Jg-1C-1

Is the answer 359.48?

Thanks
Reply 1
I hate the idea of enthalpy change of reaction.

But, your value is correct. If you had 2 mol of AgNo3, the enthalpy change would be 359.48 kJ.

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