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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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An automobile antifreeze consists of ethylene glycol C2H6O2 a nonvolatile nonelectrolyte .
Calculate the boiling point and freezing point of a 25 mass percent solution of ethylene glycol in
water. (Kb water = 0.52 0 C /m : Kf water = 1.86 0 C
/m).
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- What is the freezing point of an aqueous 1.00 m NaCl, 58.44g/mol, solution? (Kf of water = 1.86°C/m).arrow_forwardThe concentration of an aqueous KCl (74.6 g/mol) solution with a freezing point of –9.0 °C is ___ m.Kf = 1.86 °C/m for water. Assume an ideal van't Hoff factor for KCl.arrow_forwardAutomotive antifreeze consists of ethylene glycol, C₂H6O2, a non volatile nonelectrolyte. Calculate the boiling point and freezing point of a 25% mass percent solution of ethylene glycol in water. MW of Ethylene Glycol: 62.07 g/mol Kb Water: 0.52 °C/m K Water: 1.86 °C/m. 50. What is the molarity of the solution? Answer: 51. What is the change in freezing point temperature (in °C) of ethylene glycol solution? Answer: 52. What is the change in boiling point temperature (in °C) of ethylene glycol solution? Answer: 53. What is the boiling point temperature of the ethylene glycol solution? Answer: 54. What is the freezing point temperature of the ethylene glycol solution? Answer:arrow_forward
- Hand written solutions are strictly prohibited.arrow_forwardGlycerin, C3H8O3, is a nonvolatile liquid. What is the vapor pressure of a solution made by adding 161 g glycerin to 338 mL H2O at 39.8°C? The vapor pressure of pure water at 39.8°C is 54.74 torr and its density is 0.992 g/cm3. Psoln = torrarrow_forwardThe normal freezing point of benzene (C6Hç) is 5.5 °C. If 31.69 grams of the nonvolatile nonelectrolyte diphenylether (C₁2H100), are dissolved in 150.0 grams of benzene, what is the freezing point of the resulting solution? Kfp for benzene is 5.12 °C/m. °℃arrow_forward
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