A solution of .73 g of 'A' in 100 cc of water is found to be isotonic with a `3.42%` (wt./vol.) solution of sucrose `(C_12H_22O_11)`. Calculate molecular weight of A.`(C_12H_22O_11=342)`.Assume no dissociation/association.

Find out moelcular weight of sugar (C_12H_22O_11) .

A urea solutions isotonic with 3% (w//v) glucose (C_6H_12O_6) solution. Calculate the concentration of the urea solution.

Calculate the formula weight of compounds glucose (C_6 H_(12) O_6)

The number of hydrogen atoms present in 25.6 g of sucrose (C_12H_22O_11) which has a molar mass of 342.3 g is

A solution of glucose (C_6H_12O_6) is isotonic with 4 g of urea (NH_2-CO-NH_2) per liter of solution. The concentration of glucose is

20 g of a solid solute is dissolved in 180 g of water. At 100^(@)C the vapour pressure of the solution becomes 740 mmHg. Calculate relative molecular mass of the solute. (No association/dissociation of the solute takes place )

Explain why sucrose (C_(12)H_(22)O_(11)) , being a covalent compound, is quite soluble in water.

12 g of a solid solute is dissolved in 90 gm pure water. Vapour pressure of the resulting solution is 750 mm Hg at 100^@C temperature. Calculate molecular mass of the solute [Solute does not undergo any dissocia-tion or association in its aqueous solution]

Why disaccharides obtained from monosaccharides like glucose (C_(6)H_(12)O_(6)) has the formula C_(12)H_(22)O_(11) instead of C_(12)H_(24)O_(12) ?

The mole fraction of glucose (C_6H_12O_6) in aqueous solution is 0.2, then molality of solution is 0.2, then molality of solution will be