318969 Which among the following colligative properties is useful to determine molar masses of very expensive solutes?

318970 Arrange the following solutions in increasing order of their osmotic pressure.
(i) 34.2 g/litre sucrose
(ii) 60 g/litre of urea
(iii) 90 g/litre of glucose
(iv) 58.5 g/litre of sodium chloride

318971 In a 0.2 molal aqueous solution of a weak acid \(\mathrm{HX}\), the degree of ionization is 0.3 . Taking \(\mathrm{k}_{\mathrm{f}}\) for water as 1.85 , the freezing point of the solution will be nearest to

318972 The freezing point depression constant for water is \({\rm{1}}{\rm{.8}}{{\rm{6}}^{\rm{^\circ }}}{\rm{C}}{{\rm{m}}^{{\rm{ - 1}}}}{\rm{.If}}\,\,{\rm{5}}{\rm{.00}}\,{\rm{g}}\,\,{\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\) is dissolved in \({\rm{45}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{g}}{\mkern 1mu} {\mkern 1mu} {{\rm{H}}_{\rm{2}}}{\rm{O}}\), the freezing point is changed by \({\rm{ - 3}}{\rm{.8}}{{\rm{2}}^{\rm{^\circ }}}{\rm{C}}\), Calculate the van’t Hoff factor for \({\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\).

318969 Which among the following colligative properties is useful to determine molar masses of very expensive solutes?

318970 Arrange the following solutions in increasing order of their osmotic pressure.
(i) 34.2 g/litre sucrose
(ii) 60 g/litre of urea
(iii) 90 g/litre of glucose
(iv) 58.5 g/litre of sodium chloride

318971 In a 0.2 molal aqueous solution of a weak acid \(\mathrm{HX}\), the degree of ionization is 0.3 . Taking \(\mathrm{k}_{\mathrm{f}}\) for water as 1.85 , the freezing point of the solution will be nearest to

318972 The freezing point depression constant for water is \({\rm{1}}{\rm{.8}}{{\rm{6}}^{\rm{^\circ }}}{\rm{C}}{{\rm{m}}^{{\rm{ - 1}}}}{\rm{.If}}\,\,{\rm{5}}{\rm{.00}}\,{\rm{g}}\,\,{\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\) is dissolved in \({\rm{45}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{g}}{\mkern 1mu} {\mkern 1mu} {{\rm{H}}_{\rm{2}}}{\rm{O}}\), the freezing point is changed by \({\rm{ - 3}}{\rm{.8}}{{\rm{2}}^{\rm{^\circ }}}{\rm{C}}\), Calculate the van’t Hoff factor for \({\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\).

318969 Which among the following colligative properties is useful to determine molar masses of very expensive solutes?

318970 Arrange the following solutions in increasing order of their osmotic pressure.
(i) 34.2 g/litre sucrose
(ii) 60 g/litre of urea
(iii) 90 g/litre of glucose
(iv) 58.5 g/litre of sodium chloride

318971 In a 0.2 molal aqueous solution of a weak acid \(\mathrm{HX}\), the degree of ionization is 0.3 . Taking \(\mathrm{k}_{\mathrm{f}}\) for water as 1.85 , the freezing point of the solution will be nearest to

318972 The freezing point depression constant for water is \({\rm{1}}{\rm{.8}}{{\rm{6}}^{\rm{^\circ }}}{\rm{C}}{{\rm{m}}^{{\rm{ - 1}}}}{\rm{.If}}\,\,{\rm{5}}{\rm{.00}}\,{\rm{g}}\,\,{\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\) is dissolved in \({\rm{45}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{g}}{\mkern 1mu} {\mkern 1mu} {{\rm{H}}_{\rm{2}}}{\rm{O}}\), the freezing point is changed by \({\rm{ - 3}}{\rm{.8}}{{\rm{2}}^{\rm{^\circ }}}{\rm{C}}\), Calculate the van’t Hoff factor for \({\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\).

318969 Which among the following colligative properties is useful to determine molar masses of very expensive solutes?

318970 Arrange the following solutions in increasing order of their osmotic pressure.
(i) 34.2 g/litre sucrose
(ii) 60 g/litre of urea
(iii) 90 g/litre of glucose
(iv) 58.5 g/litre of sodium chloride

318971 In a 0.2 molal aqueous solution of a weak acid \(\mathrm{HX}\), the degree of ionization is 0.3 . Taking \(\mathrm{k}_{\mathrm{f}}\) for water as 1.85 , the freezing point of the solution will be nearest to

318972 The freezing point depression constant for water is \({\rm{1}}{\rm{.8}}{{\rm{6}}^{\rm{^\circ }}}{\rm{C}}{{\rm{m}}^{{\rm{ - 1}}}}{\rm{.If}}\,\,{\rm{5}}{\rm{.00}}\,{\rm{g}}\,\,{\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\) is dissolved in \({\rm{45}}{\rm{.0}}{\mkern 1mu} {\mkern 1mu} {\rm{g}}{\mkern 1mu} {\mkern 1mu} {{\rm{H}}_{\rm{2}}}{\rm{O}}\), the freezing point is changed by \({\rm{ - 3}}{\rm{.8}}{{\rm{2}}^{\rm{^\circ }}}{\rm{C}}\), Calculate the van’t Hoff factor for \({\rm{N}}{{\rm{a}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\).