Question

8. Convert into mole. (a) 12 g of oxygen gas (b) 20 g of water (c) 22 g of carbon dioxide.​

Answer 1

Answer:

a)oxygen molecular mass=32

mole=12/32

$12 \div 32 =0.375$

b)water mole=20/18

$20 \div 18 = 1.11$

c)carbon mole=22/44

$22 \div 44 = 0.5$