How many moles of water molecules are there in 50 gof hydrated calcium

1.	How many moles of water molecules are there in 50 gof hydrated calcium nitrate, Ca(NO3), 2H,0?(M: Ca(NO3)2.2H2O 200)
Answer» Explanation: The molecular weight of water H 2 O=2(1)+16=18g/mol. The molecular weight of COPPER sulphate pentahydrate CuSO 4 .5H 2 O=64+32+4(16)+5(18)=250g/mol. The percentage of water of crystallization in CuSO 4 .5H 2 O= 250 5×18 ×100=36%.

How many moles of water molecules are there in 50 gof hydrated calcium nitrate, Ca(NO3), 2H,0?(M: Ca(NO3)2.2H2O 200)

Answer»

Explanation:

The molecular weight of water H

O=2(1)+16=18g/mol.

The molecular weight of COPPER sulphate pentahydrate CuSO

O=64+32+4(16)+5(18)=250g/mol.

The percentage of water of crystallization in CuSO

.5H

250

5×18

×100=36%.