A 1.07 mg sample of a compound was dissolved in 78.1 mg of camphor, a solvent...
A 1.07 mg sample of a compound was dissolved in 78.1 mg of camphor, a solvent that melts at 179.5 *C and has an unusually high Kfp of 40.0 *C/molal. The freezing point of the resulting solution dropped to 176.0 *C.
a. Calculate delta t fp
b. Calculate the molality of the solution
c. Calculate the moles of solute in the solution
d. Calculate the molar mass of the compound
Homework Answers
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A 1.07 mg sample of a compound was dissolved in 78.1 mg of
camphor, a solvent...
(6 pt) 4 A 1.07-mg sample of a non-ionic compound was dissolved in 78.1 mg of...
(6 pt) 4 A 1.07-mg sample of a non-ionic compound was dissolved in 78.1 mg of camphor, a solvent that melts at 179.5°C and has an unusually high Kr of 40.0 mola If the freezing point of the solution is 176.0°C: a) Calculate AT, then determine the molality (m) of this solution: b) Calculate the moles of solute in this solution: e) Calculate the molar mass ()of e coound:
6. A 1.07 mg sample of a compound was dissolved in 78.1 mg of camphor. The...
6. A 1.07 mg sample of a compound was dissolved in 78.1 mg of camphor. The resulting solution melted at 176.0 C. What is the molecular mass of the compound? The melting point of pure camphor is 179.5 C. The freezing-point-depression constant for camphor Kf is 40.0 C/m. 7. A solution is prepared by dissolving 5.88 g of an unknown nonelectrolyte in enough water to make 0.355 L of solution. The osmotic pressure of the solution is 1.21 atm at...
A sample of 4.6434 g of benzoic acid, C_7H_6O_2, is dissolved in 50.0033 g of camphor....
A sample of 4.6434 g of benzoic acid, C_7H_6O_2, is dissolved in 50.0033 g of camphor. what is the freezing point of the resulting solution? For camphor, T_f = 179.5 degree C, K_f = 40.00 degree C/m.
A 93.728 grams sample of compound ionized into one cation and three anions when dissolved in...
A 93.728 grams sample of compound ionized into one cation and three anions when dissolved in 125.214 grams of water. The freezing point of the resulting solution was found to be -6.26 °C. The freezing point constant of water is 1.86 °C /m. (a) Calculate the concentration of dissolved solutes, in molality. (b) Calculate the molar mass of the solute, in grams/mole.
23. (10 pts.) A 93.728 grams sample of compound ionized into one cation and three anions...
23. (10 pts.) A 93.728 grams sample of compound ionized into one cation and three anions when dissolved in 125.214 grams of water. The freezing point of the resulting solution was found to be -6.26 °C. The freezing point constant of water is 1.86 °C/m. (a) Calculate the concentration of dissolved solutes, in molality. (b) Calculate the molar mass of the solute, in grams/mole.
23. m(10 pts.) A 93.728 grams, sample of compound ionized into one cation and three anions...
23. m(10 pts.) A 93.728 grams, sample of compound ionized into one cation and three anions when dissolved in 125.214 grams of water. The freezing point of the resulting solution was found to be -6.26 °C. The freezing point constant of water is 1.86 °C /m. (a) Calculate the concentration of dissolved solutes, in molality. (b) Calculate the molar mass of the solute, in grams/mole.
Need help solving the calculationss. please show work on a seperae piece of paper and show...
Need help solving the calculationss. please show work on a
seperae piece of paper and show all work.
Background information.
Experiment 1: Measure the Freezing Point of Pure Water 10 1. Volume of water (mL): 10 2. Mass of water (g): 3. Freezing Temperature (°C): 0 Experiment 2: Measure the Freezing Point of a Solution of an Unknown Substance 1. Mass of FP sample 1 (g): 2.00 si 2. Mass of sample and water (g): 12.000 3. Freezing Temperature (°C):...
The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kr=20.0. 0.142 g of an unknown...
The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kr=20.0. 0.142 g of an unknown solute is dissolved in 7.78 g of cyclohexane (C6H12). The freezing point of the solution was 3.35°C. Calculate the corresponding molar mass of the solute. g/mol 1 homework pts Submit Answer Tries 0/5 To the above solution a further 0.133 g of the unknown is dissolved. The freezing point of the resulting solution was 0.77°C. Calculate the corresponding molar mass of the solute. g/mol...
Molar Mass of a Solute The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kf=20.0....
Molar Mass of a Solute The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kf=20.0. 0.147 g of an unknown solute is dissolved in 7.71 g of cyclohexane (C6H12). The freezing point of the solution was 3.38°C. Calculate the corresponding molar mass of the solute. g/mol 1homework pts Submit Answer Tries 0/5 To the above solution a further 0.139 g of the unknown is dissolved. The freezing point of the resulting solution was 0.85°C. Calculate the corresponding molar mass...
Molar Mass of a Solute The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kp=20.0....
Molar Mass of a Solute The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kp=20.0. 0.141 g of an unknown solute is dissolved in 7.90 g of cyclohexane (C6H12). The freezing point of the solution was 3.33ºC. Calculate the corresponding molar mass of the solute. g/mol 1homework pts Submit Answer Tries 0/5 To the above solution a further 0.132 g of the unknown is dissolved. The freezing point of the resulting solution was 0.75°C. Calculate the corresponding molar mass...
(6 pt) 4 A 1.07-mg sample of a non-ionic compound was dissolved in 78.1 mg of camphor, a solvent that melts at 179.5°C and has an unusually high Kr of 40.0 mola If the freezing point of the solution is 176.0°C: a) Calculate AT, then determine the molality (m) of this solution: b) Calculate the moles of solute in this solution: e) Calculate the molar mass ()of e coound:
A sample of 4.6434 g of benzoic acid, C_7H_6O_2, is dissolved in 50.0033 g of camphor. what is the freezing point of the resulting solution? For camphor, T_f = 179.5 degree C, K_f = 40.00 degree C/m.
23. (10 pts.) A 93.728 grams sample of compound ionized into one cation and three anions when dissolved in 125.214 grams of water. The freezing point of the resulting solution was found to be -6.26 °C. The freezing point constant of water is 1.86 °C/m. (a) Calculate the concentration of dissolved solutes, in molality. (b) Calculate the molar mass of the solute, in grams/mole.
23. m(10 pts.) A 93.728 grams, sample of compound ionized into one cation and three anions when dissolved in 125.214 grams of water. The freezing point of the resulting solution was found to be -6.26 °C. The freezing point constant of water is 1.86 °C /m. (a) Calculate the concentration of dissolved solutes, in molality. (b) Calculate the molar mass of the solute, in grams/mole.
Need help solving the calculationss. please show work on a
seperae piece of paper and show all work.
Background information.
Experiment 1: Measure the Freezing Point of Pure Water 10 1. Volume of water (mL): 10 2. Mass of water (g): 3. Freezing Temperature (°C): 0 Experiment 2: Measure the Freezing Point of a Solution of an Unknown Substance 1. Mass of FP sample 1 (g): 2.00 si 2. Mass of sample and water (g): 12.000 3. Freezing Temperature (°C):...
The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kr=20.0. 0.142 g of an unknown solute is dissolved in 7.78 g of cyclohexane (C6H12). The freezing point of the solution was 3.35°C. Calculate the corresponding molar mass of the solute. g/mol 1 homework pts Submit Answer Tries 0/5 To the above solution a further 0.133 g of the unknown is dissolved. The freezing point of the resulting solution was 0.77°C. Calculate the corresponding molar mass of the solute. g/mol...
Molar Mass of a Solute The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kf=20.0. 0.147 g of an unknown solute is dissolved in 7.71 g of cyclohexane (C6H12). The freezing point of the solution was 3.38°C. Calculate the corresponding molar mass of the solute. g/mol 1homework pts Submit Answer Tries 0/5 To the above solution a further 0.139 g of the unknown is dissolved. The freezing point of the resulting solution was 0.85°C. Calculate the corresponding molar mass...
Molar Mass of a Solute The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kp=20.0. 0.141 g of an unknown solute is dissolved in 7.90 g of cyclohexane (C6H12). The freezing point of the solution was 3.33ºC. Calculate the corresponding molar mass of the solute. g/mol 1homework pts Submit Answer Tries 0/5 To the above solution a further 0.132 g of the unknown is dissolved. The freezing point of the resulting solution was 0.75°C. Calculate the corresponding molar mass...
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