Calculate the molality of a solution that contains 51.2g of naphthalene, (`C_(10)H_(8)`) in 500 mL of carbon tetrachloride. The density of `C Cl_(4)` is 1.60 g/m

Options

A. 0.250 m
B. 0.500 m
C. 0.750 m
D. 0.840 m

Answer

B