A solution is made by dissolving 0.749 mol of nonelectrolyte solute in 861 g of benzene....
A solution is made by dissolving 0.749 mol of nonelectrolyte solute in 861 g of benzene. Calculate the freezing point, Tf, and boiling point, Tb, of the solution. Constants may be found here.
| Solvent | Formula | Kf
value*
(°C/m) |
Normal freezing point (°C) |
Kb
value
(°C/m) |
Normal boiling point (°C) |
| water | H2O | 1.86 | 0.00 | 0.512 | 100.00 |
| benzene | C6H6 | 5.12 | 5.49 | 2.53 | 80.1 |
| cyclohexane | C6H12 | 20.8 | 6.59 | 2.92 | 80.7 |
| ethanol | C2H6O | 1.99 | –117.3 | 1.22 | 78.4 |
| carbon tetrachloride |
CCl4 | 29.8 | –22.9 | 5.03 | 76.8 |
| camphor | C10H16O | 37.8 | 176 |
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A solution is made by dissolving 0.749 mol of nonelectrolyte
solute in 861 g of benzene....
A solution is made by dissolving 0.585 mol of nonelectrolyte solute in 877 g of benzene....
A solution is made by dissolving 0.585 mol of nonelectrolyte solute in 877 g of benzene. Calculate the freezing point, Tf, and boiling point, Tb, of the solution. Constants can be found in the table of colligative constants. Constants for freezing-point depression and boiling-point elevation calculations at 1 atm: Solvent Formula Kf value* (°C/m) Normal freezing point (°C) Kb value (°C/m) Normal boiling point (°C) water H2O 1.86 0.00 0.512 100.00 benzene C6H6 5.12 5.49 2.53 80.1 cyclohexane C6H12 20.8...
A solution is made by dissolving 0.592 mol of nonelectrolyte solute in 767 g of benzene....
A solution is made by dissolving 0.592 mol of nonelectrolyte solute in 767 g of benzene. Calculate the freezing point, Te, and boiling point, Tb, of the solution. Constants can be found in the table of colligative constants. T = Colligative Constants Constants for freezing-point depression and boiling-point elevation calculations at 1 atm: Solvent Formula Kf value* Normal freezing Kb value Normal boiling (°C/m) point (°C) (°C/m) point (°C) water H20 1.86 0.00 0.512 100.00 benzene 5.12 5.49 2.53 80.1...
Assuming 100% dissociation, calculate the freezing point and boiling point of 2.11 m Na2SO4(aq). Constants may...
Assuming 100% dissociation, calculate the freezing point and boiling point of 2.11 m Na2SO4(aq). Constants may be found here. Solvent Formula Kf value* (°C/m) Normal freezing point (°C) Kb value (°C/m) Normal boiling point (°C) water H2O 1.86 0.00 0.512 100.00 benzene C6H6 5.12 5.49 2.53 80.1 cyclohexane C6H12 20.8 6.59 2.92 80.7 ethanol C2H6O 1.99 –117.3 1.22 78.4 carbon tetrachloride CCl4 29.8 –22.9 5.03 76.8 camphor C10H16O 37.8 176
At -18.6 °C, a common temperature for household freezers, what is the maximum mass of sucralose...
At -18.6 °C, a common temperature for household freezers, what is the maximum mass of sucralose (C12H19C1308) in grams you can add to 2.00 kg of pure water and still have the solution freeze? Assume that sucralose is a molecular solid and does not ionize when it dissolves in water. Consult the table of Kf values. Answer: Solvent water benzene cyclohexane ethanol carbon tetrachloride camphor Formula Kf value* Normal freezing Kb value Normal boiling (°C/m) point (°C) (°C/m) point (°C)...
At- 15.0 °C (a common temperature for household freezers), what is the maximum mass of sucrose...
At- 15.0 °C (a common temperature for household freezers), what is the maximum mass of sucrose (C12H22011) you can add to 2.00 kg of pure water and still have the solution freeze? Assume that sucrose is a molecular solid and does not ionize when it dissolves in water. Kf values are given here Number Constants for freezing-point depression and boiling-point elevation calculations at 1 atm: Solvent Formula Kf value*Normal freezing Kb value Normal boiling point (oc 0.00 5.49 6.59 °C/m...
Calculate the freezing point of a 11.50 m aqueous solution of propanol. Freezing point constants can...
Calculate the freezing point of a 11.50 m aqueous solution of propanol. Freezing point constants can be found in the list of colligative constants. Colligative Constants Constants for freezing point depression and boiling point elevation calculations at 1 atm: Solvent Formula Kvalue" Normal freezing ky value Normal bolling (°C/m) point (°C) (°C/m) point (°C) H20 1.86 0.00 0.512 100.00 CGHS 5.12 5.49 CH12 20.8 6.59 CyH60 1.99 -117.3 calu 29.8 -22.9 76.8 water benzene cyclohexane ethanol carbon tetrachloride camphor 2.53...
At -10.5°C, a common temperature for household freezers, what is the maximum mass of aspartame (C14H;8N2O3)...
At -10.5°C, a common temperature for household freezers, what is the maximum mass of aspartame (C14H;8N2O3) you can add to 2.00 kg of pure water and still have the solution freeze? Assume that aspartame is a molecular solid and does not ionize when it dissolves in water. Consult the table of K, values. mass of aspartame: Colligative Constants Constants for freezing-point depression and boiling-point elevation calculations at 1 atm: Solvent Formula Kf value* Normal freezing Ko value Normal bolling (°C/m)...
A solution is made by dissolving 0.745 mol of nonelectrolyte solute in 853 g of benzene....
A solution is made by dissolving 0.745 mol of nonelectrolyte solute in 853 g of benzene. Calculate the freezing point and boiling point of the solution. The normal freezing point of benzene is 5.49 °C and the normal boiling point of benzene is 80.1 °C. Assuming 100% dissociation, calculate the freezing point and boiling point of 0.570 mol of AgNO3 in 1.00 kg of water.
A solution is made by dissolving 0.652 mol0.652 mol of nonelectrolyte solute in 861 g861 g...
A solution is made by dissolving 0.652 mol0.652 mol of nonelectrolyte solute in 861 g861 g of benzene. Calculate the freezing point, ?f,Tf, and boiling point, ?b,Tb, of the solution. Thank you in advance
Quinine is a natural product extracted from the bark of the cinchona tree, which is native...
Quinine is a natural product extracted from the bark of the
cinchona tree, which is native to South America. Quinine is used as
an antimalarial agent.
When 1.68 g of quinine is dissolved in 25.0 g of cyclohexane,
the freezing point of the solution is lowered by 4.31∘ C. The
freezing point and Kf constant for cyclohexane can be found
here.
Calculate the molar mass of quinine.
Solvent Formula Kf valueNormal freezing Kb value Normal boiling point (°C) 0.00 5.49...
A solution is made by dissolving 0.592 mol of nonelectrolyte solute in 767 g of benzene. Calculate the freezing point, Te, and boiling point, Tb, of the solution. Constants can be found in the table of colligative constants. T = Colligative Constants Constants for freezing-point depression and boiling-point elevation calculations at 1 atm: Solvent Formula Kf value* Normal freezing Kb value Normal boiling (°C/m) point (°C) (°C/m) point (°C) water H20 1.86 0.00 0.512 100.00 benzene 5.12 5.49 2.53 80.1...
At -18.6 °C, a common temperature for household freezers, what is the maximum mass of sucralose (C12H19C1308) in grams you can add to 2.00 kg of pure water and still have the solution freeze? Assume that sucralose is a molecular solid and does not ionize when it dissolves in water. Consult the table of Kf values. Answer: Solvent water benzene cyclohexane ethanol carbon tetrachloride camphor Formula Kf value* Normal freezing Kb value Normal boiling (°C/m) point (°C) (°C/m) point (°C)...
At- 15.0 °C (a common temperature for household freezers), what is the maximum mass of sucrose (C12H22011) you can add to 2.00 kg of pure water and still have the solution freeze? Assume that sucrose is a molecular solid and does not ionize when it dissolves in water. Kf values are given here Number Constants for freezing-point depression and boiling-point elevation calculations at 1 atm: Solvent Formula Kf value*Normal freezing Kb value Normal boiling point (oc 0.00 5.49 6.59 °C/m...
Calculate the freezing point of a 11.50 m aqueous solution of propanol. Freezing point constants can be found in the list of colligative constants. Colligative Constants Constants for freezing point depression and boiling point elevation calculations at 1 atm: Solvent Formula Kvalue" Normal freezing ky value Normal bolling (°C/m) point (°C) (°C/m) point (°C) H20 1.86 0.00 0.512 100.00 CGHS 5.12 5.49 CH12 20.8 6.59 CyH60 1.99 -117.3 calu 29.8 -22.9 76.8 water benzene cyclohexane ethanol carbon tetrachloride camphor 2.53...
At -10.5°C, a common temperature for household freezers, what is the maximum mass of aspartame (C14H;8N2O3) you can add to 2.00 kg of pure water and still have the solution freeze? Assume that aspartame is a molecular solid and does not ionize when it dissolves in water. Consult the table of K, values. mass of aspartame: Colligative Constants Constants for freezing-point depression and boiling-point elevation calculations at 1 atm: Solvent Formula Kf value* Normal freezing Ko value Normal bolling (°C/m)...
Quinine is a natural product extracted from the bark of the
cinchona tree, which is native to South America. Quinine is used as
an antimalarial agent.
When 1.68 g of quinine is dissolved in 25.0 g of cyclohexane,
the freezing point of the solution is lowered by 4.31∘ C. The
freezing point and Kf constant for cyclohexane can be found
here.
Calculate the molar mass of quinine.
Solvent Formula Kf valueNormal freezing Kb value Normal boiling point (°C) 0.00 5.49...
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