The freezing point of benzene decreases by `0.45^(@)C` when `0.2 g` of acetic acid is

On adding 1g arsenic to 80 g benzene, the freezing point of benzene is lowered by 0.213^(@)C . The formula of arsenic molecule is : (Atomic mass of arsenic = 75) ( K_(f) = 5.12 K kg/mol)

0.48 of a substance is dissolved in 10.6 g of C_(6)H_(6) .The freezing point of benzene is lowered by 1.8^(@)C what will be the mol.wt.of the substance ( K_(f) for benzene = 5 )

The freezing point of nitrobenzene is 3^(@)C . When 1.2 g of chloroform (mol. Wt. =120) is dissolved in 100 g of nitrobenzene, freezing point will be 2.3^(@)C . When 0.6 g of acetic acid is dissolved in 100 g of nitrobenzene, freezing point of solution is 2.64^(@)C . If the formula of acetic acid is (CH_(2)O)_(n) , find the value of n.