Chemistry Homework Help

Browse Homework Solutions

53 solutions

Boiling Point Elevation

Q. The boiling point of an aqueous 1.83 m (NH4) 2SO4 (molar mass =132.15 g/mol) solution is 102.5 C. Determine the value of the vant hoff factor for this solute if the kb for water is 0.512 C/m. A.) 1.8 B.) 3.6 C.) 2.3 D.) 3.0 E.) 2.7

Solved • Apr 20, 2020

Boiling Point Elevation

Q. calculate the boiling point (in °C) of an aqueous solution containing 884.5g of ethylene glycol(C2H6O2) in 1.000 L of water. Kb = 0.51 °C/m

Solved • Mar 5, 2020

Boiling Point Elevation

Q. Calculate the boiling point (in °C) of an aqueous solution containing 176.2 g of ethylene glycol (C2H6O2) in 1.000 L of water. Kb = 0.51 °C/m

Solved • Feb 26, 2020

Boiling Point Elevation

Q. 27. What mass of Ca(NO3)2 should be dissolved in 100.0 g of water to obtain a solution with a boiling point of 101.55 °C? (Kb for water is 0.512 °C/m. The boiling point of pure water is 100.0 °C.)

Solved • Feb 20, 2020

Boiling Point Elevation

Q. A solution of toluene in 301 g of cyclohexane has a boiling point of 90.3 °C. How many moles of toluene are in the solution? (For cyclohexane Kb = 2.92 °C/m, Tb = 80.9 °C)

Solved • Feb 17, 2020

Boiling Point Elevation

Q. An aqueous CsCl solution is 8.00 wt% CsCl and has a density of 1.0643 g/mL at 20°C. What is the boiling point of this solution? Kb = 0.51°C/m for water. Enter your answer with 2 decimal places and no units.

Solved • Feb 17, 2020

Boiling Point Elevation

Q. Which of the following solutions will have the highest boiling point? Input the appropriate letter. A. 35.0 g of C2H6O2 in 250.0 g of ethanol (C2H5OH) B. 35.0 g of C3H8O in 250.0 g of ethanol (C2H5OH) C. 35.0 g of C4H10O in 250.0 g of ethanol (C2H5OH)

Solved • Feb 10, 2020