Question

The boiling point of pure benzene (C6H6) is 80.10 C. A solution of 7.39 g of...

The boiling point of pure benzene (C6H6) is 80.10 C. A solution of 7.39 g of a solid dissolved in 85.0 g of benzene boils at 82.49 C. If kb for benzene is 2.53 C/molal, the molar mass of the solid is:

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The boiling point of benzene C6H6 is 80.10°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves...
The boiling point of benzene C6H6 is 80.10°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in benzene is estrogen (estradiol). How many grams of estrogen, C18H24O2 (272.4 g/mol), must be dissolved in 258.0 grams of benzene to raise the boiling point by 0.450 °C ? ______g estrogen.
What is the boiling point of a solution made by dissolving 15.4 g of CCl4 in...
What is the boiling point of a solution made by dissolving 15.4 g of CCl4 in 80.0 g of benzene? (The boiling point of pure benzene is 80.1°C and Kb = 2.53 °C/m.)
A solution is made by dissolving 0.0803 g of biphenyl (C₁₂H₁₀) in 350.0 mL of benzene...
A solution is made by dissolving 0.0803 g of biphenyl (C₁₂H₁₀) in 350.0 mL of benzene (C₆H₆) A. If the boiling point of pure benzene is 80.1 °C, then what would be the boiling point of this solution? (Kb for benzene is 2.53 °C/m and the density of benzene is 0.877 g/mL) B. If the vapor pressure of pure benzene is 24.4 kPa at 40.0 °C, then what will the vapor pressure of the solution be? (Consider biphenyl to be...
Calculate the freezing point and boiling point of a solution containing 13.6 g of naphthalene (C10H8)...
Calculate the freezing point and boiling point of a solution containing 13.6 g of naphthalene (C10H8) in 110.0 mL of benzene. Benzene has a density of 0.877 g/cm3. A)Calculate the freezing point of a solution. (Kf(benzene)=5.12∘C/m.) B)Calculate the boiling point of a solution. (Kb(benzene)=2.53∘C/m.)
) Pure benzene, C6H6, has a density of 0.8765 g/ml, a freezing point of 5.45oC and...
) Pure benzene, C6H6, has a density of 0.8765 g/ml, a freezing point of 5.45oC and a boiling point of 80.2oC. Its freezing point depression constant, Kf, is 5.07oC/m. A solution was made by taking 24.20 grams of an unknown non-electrolyte and dissolving it in 125.0 grams of benzene. The measured freezing point of the solution was -1.65oC. Calculate the molecular weight of the unknown substance. 258 g/mole 145 g/mole 138 g/mole 272 g/mole 595 g/mol
Calculate the freezing point and boiling point of a solution containing 18.4 g of naphthalene (C10H8)...
Calculate the freezing point and boiling point of a solution containing 18.4 g of naphthalene (C10H8) in 114.0 mL of benzene. Benzene has a density of 0.877 g/cm3. (Kf(benzene)=5.12∘C/m.) (Kb(benzene)=2.53∘C/m.)
The dissolution of 5.25 g of a substance in 565 g of benzene at 298 K...
The dissolution of 5.25 g of a substance in 565 g of benzene at 298 K raises the boiling point by 0.625°C. Note that Kf = 5.12 K kg/mol, Kb = 2.53 K kg/mol, and the density of benzene is 876.6 kg/m3 . Calculate the freezing point depression, the ratio of the vapor pressure above the solution to that of the pure solvent, the osmotic pressure, and the molar mass of the solute. * Pbenzene =103 Torr at 298 K.
The dissolution of 5.25 g of a substance in 565 g of benzene at 298 K...
The dissolution of 5.25 g of a substance in 565 g of benzene at 298 K raises the boiling point by 0.625 K. Note that Kf = 5.12 K kg/mol, Kb = 2.53 K kg/mol, and the density of benzene is 876.6 kg/m3 . Calculate the: a.) freezing point depression b.) ratio of the vapor pressure above the solution to that of the pure solvent c.) the osmotic pressure d.) molar mass of the solute. Given: (P*benzene = 103 Torr...
The vapor pressure of benzene (C6H6) is 120 torr at 27.0◦C, and its normal boiling point...
The vapor pressure of benzene (C6H6) is 120 torr at 27.0◦C, and its normal boiling point is 80.1◦C. What is the molar heat of vaporization of benzene?
1. The freezing point of benzene C6H6 is 5.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that...
1. The freezing point of benzene C6H6 is 5.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in benzene is cholesterol . If 10.34 grams of cholesterol, C27H46O (386.6 g/mol), are dissolved in 157.9 grams of benzene ... The molality of the solution is_______ m. The freezing point of the solution is________ °C. 2.The boiling point of ethanol CH3CH2OH is 78.50°C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in ethanol is estrogen (estradiol). How many grams of estrogen, C18H24O2...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT