Question

9
Four containers of 2L capacity contains
dinitrogen as described below. Which one
contains maximum number of molecules.
(A) 2.5 gm-molecules of N2
(B) 4 gm-atom of nitrogen
(C) 3.01 X 1024 N atoms
(D) 84 gm of dinitrogen​

Answer 1

Answer:

(1)2.5gm-molecules of N

2

:-

1gm-molecules of N

2

→6.022×10

23

molecules N

2

2.5gm-molecules of N

2

→15.055×10

23

molecules N

2

=1.5055×10

24

(2)4gm-atom of nitrogen:-

28gm-atom of N

2

→6.022×10

23

atoms

4gm-atoms of N

2

→0.86×10

23

N atoms

=0.086×10

24

N atoms

(3)3.01×10

24

N atoms

(4)28gN

2

→6.022×10

23

atoms

84gN

2

→84×6.022×10

23

atoms

=1.86×10

2

4