Question

plz plz
only question (b)​

Answer 1

Answer:

I DON'T UNDERSTAND YOUR QUESTION PROPERLY

Answer 2

159.5 U

Explanation:

mass of Cu = 63.6 U

mass of S = 32 U

mass of O = 16 , mass of 04 = 16×4=64

Atomic mass of CuSO4= mass of Cu+ mass of S + Mass of O4

Atomic mass of CuSO4 = 63.5 + 32 + 64= 159.5U

so atomic mass of CuSO4 =159.5

hope you understood