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I need help with my chemistry practical (enthalpy of water of crystallization)

Someone please help me!! We're all doing our own practical for class and we have to write a plan for the assignment but i cant write the plan because i dont understan the practical!
My teacher explained it 3 times to me but i still dont get it

The practical is, To determine the enthalpy of water of crystallization of NiCl2 . 6H2O

I understand the first part of the practical, which is to find the purity of NiCl2 .6H2O

But i dont understand the rest... which is to find the enthalpy of solution for NiCl2 . 6H2O and to find the enthalpy of solution for NiCl2 and then the last part is to use the hess cycle .... i dont understand this whole paragraph i've wrote, please someone help i've tried looking everywhere online but i cant find any answers :'(((((((((((