Question

12. What is the mass of: (2) (a) 0.3 mole of oxygen atoms ? (b) 0.2 mole of water molecules ​

Answer 1

Answer:

à. 4.8g of oxygen

b. 3.6g of water

Explanation:

I hope it may be useful to you

thanks you.....✌✌

Answer 2

Question :-

What is the mass of:

(a) 0.2 mole of oxygen atoms?

(b) 0.5 mole of water molecules?

Answer :-

(a) Mole of Oxygen atoms = 0.2 mole

Molar mass of oxygen atoms = 16 g

Mass of oxygen atoms = 16 x 0.2 = 3.2 g

(b) Mole of water molecule = 0.5 mole

Molar mass of water molecules = 2 x 1 + 16= 18 g .

Mass of H2O = 18 x 0.5 = 9 g

Plz mrk as brainliest ❤  

Hope it helps ❤