What is the freezing point depression for a 2 m solution of aluminum chloride? show all...
What is the freezing point depression for a 2 m solution of aluminum chloride? show all steps
Homework Answers
AlCl3 dissociates as
AlCl3↔Al3+ + 3Cl-
Assuming complete dissociation, i=4
Cryoscopic constant for water (Kf)=1.86 °C/m
Therefore, depression in freezing point (∆Tf)= i* Kf * m=4×1.86
°C/m ×2=14.88°C
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What is the freezing point depression for a 2 m solution of
aluminum chloride? show all...
What is the expected freezing point depression and freezing point of a 0.20m solution of the...
What is the expected freezing point depression and freezing point of a 0.20m solution of the strong electrolyte calcium chloride, CaCl2? Kf = 1.86°C/m
1. What is the freezing point depression for the unknown solution for each trial? 2. How...
1. What is the freezing point depression for the unknown solution for each trial? 2. How do you determine the van't Hoff factor for each trial, and what is the average van't Hoff factor? Trial 1: 18mL of 0.200 m unknown, ionic compound solution initial temp: 17.90 degrees C. observed freezing point of solution: -1.55 degrees C. Observed freezing point of water: -0.84 degrees C. Trial 2: 20 mL of 0.200 m unknown, ionic compound solution initial temp: 17.66 degrees...
Question 20. Calculate the freezing point depression and the freezing point of a 1.7 m ethylene...
Question 20. Calculate the freezing point depression and the freezing point of a 1.7 m ethylene glycol solution [-3.2 °C] Question 21. Calculate the freezing point of a 2.6 m sucrose solution. I - 4.8°C] Question 22. Calculate the boiling point elevation and the boiling point of 1.7 methylene glycol solution. [100. 87°C] Question 23. Calculate the boiling point of a 3.5 m glucose solution. [ 101.8°C]
if the freezing point depression constant for water is 1.83°C kg/m, calculate the freezing point for...
if the freezing point depression constant for water is 1.83°C kg/m, calculate the freezing point for a 0.752 m sugar solution Type your answer..
If the freezing point depression constant for water is 1.90 °C kg/m, calculate the freezing point...
If the freezing point depression constant for water is 1.90 °C kg/m, calculate the freezing point for a 0.801 m aqueous sugаr solution Type you answer
4. Freezing Point Depression and Boiling Point Elevation Problems-7.5 pts Calculate the freezing point depression and...
4. Freezing Point Depression and Boiling Point Elevation Problems-7.5 pts Calculate the freezing point depression and the boiling point elevation of a solution containing 17.l g of sucrose, CiH:Oi and 200. g of water. What are the actual freezing and boiling points of the solution? New freezing point New boiling point =
2 2 points If the freezing point depression constant for water is 1.82°C kg/m, calculate the...
2 2 points If the freezing point depression constant for water is 1.82°C kg/m, calculate the freezing point for a 0.713 m aqueous sugаr solution. Type your answer...
Calculate the boiling point of a solution of CaCl2 in water. The freezing point depression of...
Calculate the boiling point of a solution of CaCl2 in water. The freezing point depression of the same solution is -1.420 °C (kf = 1.86 °c/m, kb = 0.52°C/m).
What are the boiling point and freezing point of a 4.97 m solution of naphthalene in...
What are the boiling point and freezing point of a 4.97 m solution of naphthalene in benzene? (The boiling point and freezing point of benzene are 80.1 C and 55 degree C respectively. The boiling point elevation constant for benzene is 2.53 C/m, and the freezing point depression constant for benzene is 5.12 degree C/m.'')
The freezing point depression of a solution made by the addition of a nonionic unknown solute...
The freezing point depression of a solution made by the addition of a nonionic unknown solute to benzophenone was used to determine the molar mass of the unknown. Data was collected for a solution containing 500. g of benzophenone with 5.0 ml of the unknown solute added. The density of the unknown solute was 6.18 g/ml. The K_f of benzophenone is 9.8 degree C M^-1. The freezing point of the benzophenone was determined to be 7.19 degree C. The freezing...
Question 20. Calculate the freezing point depression and the freezing point of a 1.7 m ethylene glycol solution [-3.2 °C] Question 21. Calculate the freezing point of a 2.6 m sucrose solution. I - 4.8°C] Question 22. Calculate the boiling point elevation and the boiling point of 1.7 methylene glycol solution. [100. 87°C] Question 23. Calculate the boiling point of a 3.5 m glucose solution. [ 101.8°C]
if the freezing point depression constant for water is 1.83°C kg/m, calculate the freezing point for a 0.752 m sugar solution Type your answer..
If the freezing point depression constant for water is 1.90 °C kg/m, calculate the freezing point for a 0.801 m aqueous sugаr solution Type you answer
4. Freezing Point Depression and Boiling Point Elevation Problems-7.5 pts Calculate the freezing point depression and the boiling point elevation of a solution containing 17.l g of sucrose, CiH:Oi and 200. g of water. What are the actual freezing and boiling points of the solution? New freezing point New boiling point =
2 2 points If the freezing point depression constant for water is 1.82°C kg/m, calculate the freezing point for a 0.713 m aqueous sugаr solution. Type your answer...
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The freezing point depression of a solution made by the addition of a nonionic unknown solute to benzophenone was used to determine the molar mass of the unknown. Data was collected for a solution containing 500. g of benzophenone with 5.0 ml of the unknown solute added. The density of the unknown solute was 6.18 g/ml. The K_f of benzophenone is 9.8 degree C M^-1. The freezing point of the benzophenone was determined to be 7.19 degree C. The freezing...
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