calorimetry

Question 1

what is the equation to work out enthalpy change of solution

Answer 1

enthalpy change of solution= -LE + enthalpy change of hydration for positive ions + enthalpy change of hydration for negative ions

Question 2

what sign must enthalpy change be when calculating enthalpy change of solution

Answer 2

negative

Question 3

how do you work out the moles for delta H

Answer 3

from the mass of the compound given e.g. calcium chloride