Question

Find the percentage of water of crystallisation in CuSO;-5H,O. (At. mass Cu = 64, H = 1, 0 = 16, S = 32)​

Answer 1

Explanation:

Cu-64

H-1

O-16

S-32

CuSO4. 5H2O

64+32+(16*2).(1*2)+16

64+32+64.+2+16

160.18

water of crystallisation =18