Question

Find the number of water molecules associated with each cuso4

Answer 1

5 water molecules are there

Answer 2

$\huge\red{Answer}$

find the formula mass of each 

divide 5.66 g by formula mass of CuSO4 =159.6 amu./5.66 g. =28.20 mol 

find formula mass of H2O and divide by missing weight so. 18.014/(7.58 g. - 5.66 g.) = 9.396 mol 

divide larger number by smaller so... 28.20/9.396 = 3.00 

so it's a 1 to 3 ration meaning that there are 3 H20 for every CuSO4 

= CuSO4 • 3H2O

HOPE IT HELPS YOU !!