Some Basic Concepts Of Chemistry Question 206
Question: The number of molecules in $ 8.96\ L $ of a gas at $ 0^{o}C $ and 1 atmosphere pressure is approximately [BHU 1993]
Options:
A) $ 6.02\times 10^{23} $
B) $ 12.04\times 10^{23} $
C) $ 18.06\times 10^{23} $
D) $ 24.08\times 10^{22} $
Show Answer
Answer:
Correct Answer: D
Solution:
$ \because $ 22.4L of a gas at STP has no. of molecules $ =6.023\times 10^{23} $
$ \therefore $ 8.96L of a gas at STP has no. of molecules $ =\frac{6.02\times 10^{23}\times 8.96}{22.4} $ $ =2.408\times 10^{23} $ $ =24.08\times 10^{22} $ .
