Question

Convert into moles (1) 0.23g of sodium atom (2) 22g of carbon dioxide

Answer 1

Answer: 0.01 and 0.5

Explanation:

Moles = wt/ molecular mass

(i) n = 0.23/23 = 0.01

(ii)n = 22/(12+16+16) = 22/44 = 0.5

This is the reqd solution.

Answer 2

a) 0.23\23=0.01mole

b) 22/44=0.5mole