Question

What is the mass of :
A) 0.2 mole of oxygen atoms ?
B)0.5 mole of water molecules ?

Answer 1

Answer:

Ans. (a)∴ 0.2 mole of oxygen atoms = 16 × 0.2 = 3.2 g

(b) 1 mole of water molecules = 18 g ∴ 0.5 mole of water molecules = 18 × 0.5 = 9 g 10.

Hope it helps you......

Answer 2

(a) 1 mole of oxygen atoms = 16 g

0.2 mole of oxygen atoms = 16 × 0.2 = 3.2 g

(b) 1 mole of water molecules = 18 g

0.5 mole of water molecules = 18 × 0.5 = 9 g