Question: how to calculate standard enthalpy change of solution?
Answer: Amount of energy released or absorbed is calculated. q = m × Cg × ΔT. q = amount of energy released or absorbed. ... 
calculate moles of solute. n = m ÷ M. ... 
Amount of energy (heat) released or absorbed per mole of solute is calculated. ΔHsoln = q ÷ n.