Some Basic Concepts Of Chemistry Question 104
Question: $ 4.4\ g $ of an unknown gas occupies $ 2.24L $ of volume at standard temperature and pressure. The gas may be
Options:
A) Carbon dioxide
B) Carbon monoxide
C) Oxygen
D) Sulphur dioxide
Show Answer
Answer:
Correct Answer: A
Solution:
[a] $ \because $ 2.24L of gas has mass = 4.4gm
$ \therefore $ 22.4L of gas has mass $ =\frac{4.4}{2.24}\times 22.4=44 $ So given gas is $ CO _2 $ because $ CO _2 $ has molecular mass=44.
