Question

What is the mass of:
(a) 0.2 mole of oxygen atoms?
(b) 0.5 mole of water molecules?​

Answer 1

Answer:

(a) 0.2 moles of oxygen atoms= 16×0.2= 3.2g

(b) 0.5 moles of water molecules= 18×0.5=9g

Answer 2

Explanation:

0.2 mole of oxygen atoms =16×0.2=3.2g

0.5 mole of water molecules=18×0.5=9g