Question

Zinc sulphate hydrated crystal contains 22.65% zn and 43.9% h2o. If the law of constant proportion is true then mass of zn requited to give 40g crystal will be

Answer 1

9.06%

22.65% of 40 = 22.65×40/100

= 9.06%

Answer 2

Answer:

Explanation:

find number of mole of 40gram Zn crystal

put it as 22.65%of x mole of zinc sulphate

find x

and multiply it by molar mass of ZnSO4.