Question

Calculate the no. of molecules and volume in dm3 of 0.32 gms of SO2 gas at S.T.P

Answer 1

Explanation:

The molar mass of SO

2

is 32+16+16=64g/mol.

The number of moles of SO

2

present in 64 g of SO

2

is

64

64

=1mol.

1 mole of any substance contains avogadro's number of molecules which is 6.0×10

23

.

Thus, the number of molecules of SO

2

present in 64 g of SO

2

is 6.0×10

23

.