Question

molecular formula of cuso4

Answer 1

copper sulphate.......ni

Answer 2

Add up the atomic masses of Cu and S and 4 times O. From a periodic table the masses are Cu = 63.546; S = 32.06 and O = 15.999. So the molar mass od CuSO4 = 63.546 + 32.06 + 4*15.999 = 159.6. So 1 mole of CuSO4 weighs 159.6 grams.