Some Basic Concepts Of Chemistry Question 329
Question: A sample of phosphorus trichloride $ (PCl _3) $ contains 1.4 moles of the substance. How many atoms are there in the sample [Kerala PMT 2004]
Options:
A) 4
B) 5.6
C) $ 8.431\times 10^{23} $
D) $ 3.372\times 10^{24} $
E) $ 2.409\times 10^{24} $
Show Answer
Answer:
Correct Answer: C
Solution:
No. of atoms in one molecule = no. of moles $ \times ,6.022\times 10^{23} $
$ =1.4\times 6.022\times 10^{23}=8.432\times 10^{23} $
