A) 2.67
B) 1.34
C) 0.67
D) 0.33
Correct Answer: C
Solution :
Molarity \[=\frac{weight}{molecular\text{ }weight\times volume\text{ }of\text{ }solution\text{ }(in\text{ }litre)}\] \[\Rightarrow \] \[3M=\frac{80}{40\times V}\] \[V=\frac{2}{3}=0.67L\]
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