Question

Total number of moles of SO2 in 64g of SO2 is?

Answer 1

1 mole of SO2 ( 64g of SO2 ) contains 6.022 x 10²³ atoms .

First you have to find the number of moles of SO2 and this is done by ; Finding the molar mass of SO2 ( S = 32 , O = 16 ) hence the molar mass is 32 + 16*2 = 64U

Answer 2

Atomic mass of SO2 is ( 32 + 2*16 ) g
(32 + 32) g
(64) g
Given mass of SO2 = 64 g
No. of mole = Given mass of molecule /gram atomic mass of molecule
Mol. = g/A
:. Mole = 64 g / 64 g
= 1 mol.