When 0.3163 g of benzoic acid (C7H6O2) was dissolved in 15.563 g cyclohexanol, the freezing point...
When 0.3163 g of benzoic acid (C7H6O2) was dissolved in 15.563 g cyclohexanol, the freezing point of the mixture was 8.19 degrees C lower than that of the pure cyclohexanol. What is the molal freezing point constnt of the cyclohexanol? (delta T = m x Kf x i)
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When 0.3163 g of benzoic acid (C7H6O2) was dissolved in 15.563 g
cyclohexanol, the freezing point...
1.0345 g of palmitic acid dissolved in 8.7545 g of stearic acid. Calculate the freezing point...
1.0345 g of palmitic acid dissolved in 8.7545 g of stearic acid. Calculate the freezing point of the solution. The molar mass of palmitic acid is 256.48 g/ mol. The molal freezing point constant , Kf for stearic acid is 4.5 degrees C/ m and pure stearic acid freezes at 69.3 degrees Celsius.
Find the % mass of a 8.44 m solution of benzoic acid (C7H6O2) dissolved in acetone...
Find the % mass of a 8.44 m solution of benzoic acid (C7H6O2) dissolved in acetone (C3H6O). The density of the solution is 1.19 g/mL.
DATA AND CALCULATIONS Mass of lauric acid Mass of benzoic acid Freezing temperature of pure lauric...
DATA AND CALCULATIONS Mass of lauric acid Mass of benzoic acid Freezing temperature of pure lauric acid Freezing point of the benzoic acid-lauric acid mixture Freezing temperature depression, At 38-1c Molality, m molkg Moles of benzoic acid mol Molecular weight of benzoic acid (experimental) g/mo Molecular weight of benzoic acid (accepted) g/mol Percent error
The freezing point of a solution that contains 1.00 g of an unknown compound, (A), dissolved...
The freezing point of a solution that contains 1.00 g of an unknown compound, (A), dissolved in 10.0 g of benzene is found to be 2.17 oC. The freezing point of pure benzene is 5.48 oC. The molal freezing point depression constant of benzene is 5.12 oC/molal. What is the molecular weight of the unknown compound?
The freezing point of a solution of 1.104 g of an unknown nonelectrolyte dissolved in 36.81...
The freezing point of a solution of 1.104 g of an unknown nonelectrolyte dissolved in 36.81 g of benzene is 1.08°C. Pure benzene freezes at 5.48°C and its Kf value is 5.12°C/m. What is the molecular weight of the compound?
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 2.00 g samples of benzoic acid (mw = 122.2 amu) is dissolved in 50.0 g...
A 2.00 g samples of benzoic acid (mw = 122.2 amu) is dissolved in 50.0 g of lauric acid acid, which has a normal melting point of 45.0 oC. If the new solution has a depressed freezing point of 43.7 oC, what is the freezing point depression constant for lauric acid? A.0.251 oC/m B.3.97 oC/m * C.3.25 oC/m D.0.307 oC/m E.None of the above
When 151. g of benzamide C7H7NO are dissolved in 1200. g of a certain mystery liquid...
When 151. g of benzamide C7H7NO are dissolved in 1200. g of a certain mystery liquid X, the freezing point of the solution is 8.0 °C lower than the freezing point of pure X. On the other hand, when 151. g of iron(III) chloride are dissolved in the same mass of X, the freezing point of the solution is 20.5°C lower than the freezing point of pure X. Calculate the van't Hoff factor for iron(III) chloride in X. Be sure...
The normal freezing point of a certain liquid X is 4.1 C , but when 27.84...
The normal freezing point of a certain liquid X is 4.1 C , but when 27.84 g of urea ((NH2)2CO) are dissolved in 750 g of X , it is found that the solution freezes at -0.7 C instead. Use this information to calculate the molal freezing point depression constant Kf of X . Be sure your answer has the correct number of significant digits
4. 1.60g of naphthalene (CioHg) is dissolved in 20g of benzene. The freezing point of pure benzene is 5.50, and the...
4. 1.60g of naphthalene (CioHg) is dissolved in 20g of benzene. The freezing point of pure benzene is 5.50, and the freezing point of the mixture is 2.8. What is the molal freezing point depression constant, Kr of benzene? (10pts.)
DATA AND CALCULATIONS Mass of lauric acid Mass of benzoic acid Freezing temperature of pure lauric acid Freezing point of the benzoic acid-lauric acid mixture Freezing temperature depression, At 38-1c Molality, m molkg Moles of benzoic acid mol Molecular weight of benzoic acid (experimental) g/mo Molecular weight of benzoic acid (accepted) g/mol Percent error
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.
4. 1.60g of naphthalene (CioHg) is dissolved in 20g of benzene. The freezing point of pure benzene is 5.50, and the freezing point of the mixture is 2.8. What is the molal freezing point depression constant, Kr of benzene? (10pts.)
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