A) \[1.5\times {{10}^{23}}\]
B) \[1.5\times {{10}^{-23}}\]
C) \[4\times {{10}^{23}}\]
D) \[0.15\times {{10}^{23}}\]
Correct Answer: A
Solution :
Number of moles in \[5.6\text{ }L\text{ }S{{O}_{2}}\] \[=\frac{5.6}{22.4}=0.25\] \[\therefore \]Number of molecules in \[\text{5}\text{.6}\,\text{L}\,\,\text{S}{{\text{O}}_{\text{2}}}\] \[=0.25\times 6.023\times {{10}^{23}}\] \[=1.50\times {{10}^{23}}\]
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