Answer:
The answer to your question is
a) 212.7 g
b) 110 g
Explanation:
a) Mass of three moles of Chlorine
Atomic weight of Chlorine = 35.45 g but chlorine is a diatomic molecule then the atomic weight = 2(35.45) g = 70.9 g
70.9 g of Cl₂ --------------- 1 mol
x --------------- 3 moles
x = 3(70.9)/1
x = 212.7 g
b) mass of one mole of K₂S
Molecular mass = (39 x 2) + (32 x 1)
= 78 + 32
= 110 g
110 g of K₂S ---------------- 1 mol
