First slide

Gaseous state

Question

Which of the following contains greatest number of N atoms?

Moderate

A

22.4 L nitrogen gas at STP
B

500 mL of 2.00 M NH₃
C

1.00 mol of NH₄CI
D

$6 .02 \times 10^{23} molecules of {NO}_{2}$

Solution

22.4 L of N₂contains 2N_A ‘N’ atoms where as in remaining cases 1N_A‘N’ atoms present.

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