Expressing Concentration of Solutions
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CHXII02:SOLUTIONS

319177 The molality of a urea solution in which 0.0100 g of urea, \(\left[ {{{\left( {{\rm{N}}{{\rm{H}}_{\rm{2}}}} \right)}_{\rm{2}}}{\rm{CO}}} \right]\) is added to \({\rm{0}}{\rm{.3000}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\) of water at STP is

1 \({\rm{5}}{\rm{.55 \times 1}}{{\rm{0}}^{{\rm{ - 4}}}}{\rm{m}}\)
2 \({\rm{3}}{\rm{.33 \times 1}}{{\rm{0}}^{{\rm{ - 2}}}}{\rm{m}}\)
3 \({\rm{0}}{\rm{.555}}\,{\rm{m}}\)
4 \({\rm{33}}{\rm{.3}}\,{\rm{m}}\)
CHXII02:SOLUTIONS

319178 An X molal solution in carbon tetrachloride
has the mole fraction of solute equal to 0.23527. The value of X is

1 1.55
2 1.82
3 2.00
4 2.16
CHXII02:SOLUTIONS

319179 \({\rm{60g}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{COOH}}\) dissolved in \({\rm{1}}{\mkern 1mu} {\mkern 1mu} {\rm{d}}{{\rm{m}}^{\rm{3}}}\) solvent, what is molality of solution? \(\left( {{\rm{density = 1}}{\rm{.25g/c}}{{\rm{m}}^{\rm{3}}}} \right)\)

1 0.8 m
2 0.4 m
3 0.2 m
4 0.6 m
CHXII02:SOLUTIONS

319180 Statement A :
1m aqeous solution of glucose contains 180 g of glucose in 1 kg water.
Statement B :
Solution containing one mole of solute in 1000 g of solvent is called one molal solution.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
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CHXII02:SOLUTIONS

319177 The molality of a urea solution in which 0.0100 g of urea, \(\left[ {{{\left( {{\rm{N}}{{\rm{H}}_{\rm{2}}}} \right)}_{\rm{2}}}{\rm{CO}}} \right]\) is added to \({\rm{0}}{\rm{.3000}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\) of water at STP is

1 \({\rm{5}}{\rm{.55 \times 1}}{{\rm{0}}^{{\rm{ - 4}}}}{\rm{m}}\)
2 \({\rm{3}}{\rm{.33 \times 1}}{{\rm{0}}^{{\rm{ - 2}}}}{\rm{m}}\)
3 \({\rm{0}}{\rm{.555}}\,{\rm{m}}\)
4 \({\rm{33}}{\rm{.3}}\,{\rm{m}}\)
CHXII02:SOLUTIONS

319178 An X molal solution in carbon tetrachloride
has the mole fraction of solute equal to 0.23527. The value of X is

1 1.55
2 1.82
3 2.00
4 2.16
CHXII02:SOLUTIONS

319179 \({\rm{60g}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{COOH}}\) dissolved in \({\rm{1}}{\mkern 1mu} {\mkern 1mu} {\rm{d}}{{\rm{m}}^{\rm{3}}}\) solvent, what is molality of solution? \(\left( {{\rm{density = 1}}{\rm{.25g/c}}{{\rm{m}}^{\rm{3}}}} \right)\)

1 0.8 m
2 0.4 m
3 0.2 m
4 0.6 m
CHXII02:SOLUTIONS

319180 Statement A :
1m aqeous solution of glucose contains 180 g of glucose in 1 kg water.
Statement B :
Solution containing one mole of solute in 1000 g of solvent is called one molal solution.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
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CHXII02:SOLUTIONS

319177 The molality of a urea solution in which 0.0100 g of urea, \(\left[ {{{\left( {{\rm{N}}{{\rm{H}}_{\rm{2}}}} \right)}_{\rm{2}}}{\rm{CO}}} \right]\) is added to \({\rm{0}}{\rm{.3000}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\) of water at STP is

1 \({\rm{5}}{\rm{.55 \times 1}}{{\rm{0}}^{{\rm{ - 4}}}}{\rm{m}}\)
2 \({\rm{3}}{\rm{.33 \times 1}}{{\rm{0}}^{{\rm{ - 2}}}}{\rm{m}}\)
3 \({\rm{0}}{\rm{.555}}\,{\rm{m}}\)
4 \({\rm{33}}{\rm{.3}}\,{\rm{m}}\)
CHXII02:SOLUTIONS

319178 An X molal solution in carbon tetrachloride
has the mole fraction of solute equal to 0.23527. The value of X is

1 1.55
2 1.82
3 2.00
4 2.16
CHXII02:SOLUTIONS

319179 \({\rm{60g}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{COOH}}\) dissolved in \({\rm{1}}{\mkern 1mu} {\mkern 1mu} {\rm{d}}{{\rm{m}}^{\rm{3}}}\) solvent, what is molality of solution? \(\left( {{\rm{density = 1}}{\rm{.25g/c}}{{\rm{m}}^{\rm{3}}}} \right)\)

1 0.8 m
2 0.4 m
3 0.2 m
4 0.6 m
CHXII02:SOLUTIONS

319180 Statement A :
1m aqeous solution of glucose contains 180 g of glucose in 1 kg water.
Statement B :
Solution containing one mole of solute in 1000 g of solvent is called one molal solution.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
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CHXII02:SOLUTIONS

319177 The molality of a urea solution in which 0.0100 g of urea, \(\left[ {{{\left( {{\rm{N}}{{\rm{H}}_{\rm{2}}}} \right)}_{\rm{2}}}{\rm{CO}}} \right]\) is added to \({\rm{0}}{\rm{.3000}}\,\,{\rm{d}}{{\rm{m}}^{\rm{3}}}\) of water at STP is

1 \({\rm{5}}{\rm{.55 \times 1}}{{\rm{0}}^{{\rm{ - 4}}}}{\rm{m}}\)
2 \({\rm{3}}{\rm{.33 \times 1}}{{\rm{0}}^{{\rm{ - 2}}}}{\rm{m}}\)
3 \({\rm{0}}{\rm{.555}}\,{\rm{m}}\)
4 \({\rm{33}}{\rm{.3}}\,{\rm{m}}\)
CHXII02:SOLUTIONS

319178 An X molal solution in carbon tetrachloride
has the mole fraction of solute equal to 0.23527. The value of X is

1 1.55
2 1.82
3 2.00
4 2.16
CHXII02:SOLUTIONS

319179 \({\rm{60g}}{\mkern 1mu} {\mkern 1mu} {\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{COOH}}\) dissolved in \({\rm{1}}{\mkern 1mu} {\mkern 1mu} {\rm{d}}{{\rm{m}}^{\rm{3}}}\) solvent, what is molality of solution? \(\left( {{\rm{density = 1}}{\rm{.25g/c}}{{\rm{m}}^{\rm{3}}}} \right)\)

1 0.8 m
2 0.4 m
3 0.2 m
4 0.6 m
CHXII02:SOLUTIONS

319180 Statement A :
1m aqeous solution of glucose contains 180 g of glucose in 1 kg water.
Statement B :
Solution containing one mole of solute in 1000 g of solvent is called one molal solution.

1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both Statements are correct.
4 Both Statements are incorrect.
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