Question

A calorimeter contains 33.0 mL of water at 15.0 ∘C . When 2.50 g of X (a substance with a molar mass of 82.0 g/mol ) is added, it dissolves via the reaction
X(s)+H2O(l)→X(aq)
and the temperature of the solution increases to 27.0 ∘C .
Calculate the enthalpy change, ΔH, for this reaction per mole of X.

Answer 1

@kainui

Answer 2

ΔH= m Ce ΔT