Calculate the amount of benzoic acid `(C_(6)H_(5)COOH)` required for preparing 250 ml of 0.15 M solution in methanol.

Find the mass of Na_(2)CO_(3) required to prepare 3250 ml of 0.5N solution.

Calculate the mass of Na_(2)CO_(3) required to prepare 250 ml of 0.5 N solution.

The weight of oxalic acid crystals, H_(2)C_(2)O_(4)2H_(2)O required to prepare 500 ml of 0.2 N solution is,

Calculate the weight of Glucose required to prepare 500ml of 0.1 M solution.

Calculate the volume of 0.1 MKMnO_(4) required to react with 100 ml. of 0.1 M H_(2)C_(2)O_(4) . 2H_(2)O solution in the presence of H_(2)SO_(4) .

Calculate the weight of anhydrous sodium carbonate required to prepare 250ml of decimolar solution.

2 g of benzoic acid (C_(6)H_(5)COOH) dissolved in 25g of benzene shows a depression in freezing point equal to 1.62 K. Molal depression constant for benzene is 4.9 K kg "mol"^(-1) . What is the precentage association of acid if it forms dimer in solution ?