The number of molecules in 22.4 dm3 of nitrogen gas at STP is
(A) 6.023 × 1020
(B) 6.023 × 1023
(C) 22.4 × 1020
(D) 22.4 × 1023
The number of molecules in 22.4 dm3 of nitrogen gas at STP is 6.023 × 1023
Explanation :-
At *.T.P, 1 dm3 ≡ 6.023 × 1023 molecules