A) \[0.16\,\,mol/L\]
B) \[0.32\,\,mol/L\]
C) \[0.60\,\,mol/L\]
D) \[0.45\,\,mol/L\]
Correct Answer: B
Solution :
\[\pi =C\,R\,T\]; \[C=\frac{\pi }{R\,T}=\frac{7.8}{\cdot 082\times 310}=0\cdot 31\,mol/litre\]
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