Question

(1) Which of the following contains least number of molecules?

(a) 22.4 litre of SO2 gas at STP
(b) 0.2 mole of SO2 gas

(c) 32 gram of SO2 gas
(d) 11,200 ml of SO2 gas at STP​

Answer 1

Answer:

hope it helps

Explanation:

6.02×1023molecules. B ... 58.5 grams/mole. D ... Moles in 32 grams of SO2 =32/64=0.5 moles. 1 mole= 22.4 litres so 0.5 mole= 11.2 litres.

Answer 2

Answer:

b

Explanation:

a) is 1 mol of SO2

b) is 0.2 mol of SO2 (given)

c) again is 1 mol of SO2 since 32 is the molar mass

d) is 0.5 mol SO2 as one mol occupies 22400 ml