Question: how many moles of water were in the original sample of copper chloride?
Answer: How Many Moles Of Water Were In Your Sample Of Copper Chloride Hydrate? (2*1.008) + 16 = 18.02g/mol Mass Of H2O 0.2g Water * (1m/18.02g) = 0.011099m Reduced To 0.01 Moles Of Water 2.