Compute the heat in joules released by the dissolving salt

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Reference no: EM13167625

1) When a 0.800g of CaCl2 was dissolved in 9.85g of water in a microscale calorimeter, the temperature of the solution rose from 23.4 celcius to 35.8 celcius.

a. calculate the heat in joules released by the dissolving salt. Assume that the specific heat of the solution is the same as thar of pure water(4.184J/g- celcius) and that the calorimeter is perfect.

b. calculate the enthalpy of solution kJ/mol of CaCl2.

2) From the following enthalpies of reaction:

2H2(g)+O2(g)---2H2O(g) triangleH= -483.6kJ

3O2(g)------2O3(g) triagleH= +284.6kJ

Utilize Hess's law to calculatw the enthalpy change for the reaction:\

3H2(g)+O3(g)--------3H2O(g)

Reference no: EM13167625

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