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} $



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