Question

There are two cylinders, maintained at STP. One of them contains 12×1024 molecules of
ammonia gas and the other contains 48×1023 molecules of carbon monoxide gas. Then calculate
the difference between the masses (in grams) of these two gases.

Answer 1

Explanation:

Massofamolecule=

N

A

No.ofmolecules

×Molecularmass

=

6×10

23

12×10

24

×2×16

= 640g.

(ii) Volumeofamolecule=

N

A

No.ofmolecules

×Molecularvolume

=

6×10

23

12×10

24

×22.4

= 448 litres.