In an experiment to determine the heat of precipitation of silver nitrate,
50 cm3 of 1.0 mol dm-3 hydrochloric acid is added to 50 cm3 of 1.0 mol dm-3 silver nitrate solution.
The following results are obtained.
Initial temperature of silver nitrate solution (oC)
|
28.0
|
Initial temperature of hydrochloric acid solution (oC)
|
29.0
|
Highest temperature of the mixture (oC)
|
35.5
|
Calculate the heat of precipitation of silver chloride, AgCl
[Specific heat capacity of water is 4.2 J g-1 oC-1 and density of water is 1 g cm-3]
(ans: - 58.8 kJ mol-1)
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