A) \[2\times {{10}^{16}}\]
B) \[3\times {{10}^{15}}\]
C) \[3.86\times {{10}^{11}}\]
D) \[5\times {{10}^{11}}\]
Correct Answer: C
Solution :
\[pV=nRT\]\[\Rightarrow \]\[(1.2\times {{10}^{-10}}\times 13.6\times {{10}^{3}}\times 9.8)\times {{10}^{-4}}\]\[=n\times 8.31\times (273+27)\] \[\therefore \]Number of moles\[n=6.42\times {{10}^{-13}}\] Hence, number of molecules\[=6.42\times {{10}^{-13}}\times 6.02\times {{10}^{23}}=3.86\times {{10}^{11}}\]You need to login to perform this action.
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