Question

2.5 x 10 gas molecules have 20gm
what is the volume of 60gm at NTP

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Answer 1

Explanation:

120 gm is the answer i can't explain

Answer 2

Answer:

for explanation

1 mole of gas has volume 22.4 L

then no of moles in 5.6 L gas will be

22.4

5.6

=0.25 moles

If 0.25 moles of gas weighs 60 g

then 1 mole of gas weighs=

0.25

60

=240g

Molar mass=240g

Molar mass=2×Vapourdensity

240=2×V.D

⇒V.D=120

Hence, the correct option is (B).