A student investigates the enthalpy of solution, ΔHsoln, for two alkali metal halides, KCl and RbCl. Inaddition to the salts, the students has access to a calorimeter, a balance with a precision of ±0.1 g,and a thermometer with a precision of ±0.1°C.a. To measure ΔHsoln for KCl, the student adds 100.0 g of water initially at 25.0°C to acalorimeter and adds 20.0 g of KCl(s), stirring to dissolve. After the KCl dissolvescompletely, the maximum temperature reached by the solution is 55.4°C.   Question : Determine the value of ΔHsoln for KCl in kJ/molrxn

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A student investigates the enthalpy of solution, ΔHsoln, for two alkali metal halides, KCl and RbCl. In
addition to the salts, the students has access to a calorimeter, a balance with a precision of ±0.1 g,
and a thermometer with a precision of ±0.1°C.
a. To measure ΔHsoln for KCl, the student adds 100.0 g of water initially at 25.0°C to a
calorimeter and adds 20.0 g of KCl(s), stirring to dissolve. After the KCl dissolves
completely, the maximum temperature reached by the solution is 55.4°C.

 

Question : Determine the value of ΔHsoln for KCl in kJ/mol
rxn

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