Question

Calculate relative molecular mass of CaSO4 [Zn = 65, S=32, O = 16, Ca = 40, C = 12]​

Answer 1

Answer:

Guess it's right. Hope it helps you.

Answer 2

Explanation:

Molecular mass of ZnSO

4

:

Atomic mass of Zn+ Atomic mass of S+4× atomic mass of O

65u+32u+4×16u

65u+32u+64u

161u

Thus, the molecular mass of ZnCO 3

is 161u