I.Solve the following problems and show your solution. 1) You added 1.2 kg of ethylene glycol (HOCH2CH2OH), as an antifreeze to 4.0 kg of water in the radiator of your car. What are the mole fraction, molality, and weight percent of the ethylene glycol? 2) A sample of 0.892 g of potassium chloride (KCl) is dissolved in 54.6 g of water. What is the percent by mass of KCl in the solution? 3) What is the mass percent of sodium hydroxide in a solution that is made by dissolving 8.00 g NaOH in 50.0 g H2O?

Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter10: Properties Of Solutions
Section: Chapter Questions
Problem 5ALQ: You have read that adding a solute to a solvent can both increase the boiling point and decrease the...
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I.Solve the following problems and show your solution.

1) You added 1.2 kg of ethylene glycol (HOCH2CH2OH), as an antifreeze to 4.0 kg of water in the radiator of your car. What are the mole fraction, molality, and weight percent of the ethylene glycol?

2) A sample of 0.892 g of potassium chloride (KCl) is dissolved in 54.6 g of water. What is the percent by mass of KCl in the solution?

3) What is the mass percent of sodium hydroxide in a solution that is made by dissolving 8.00 g NaOH in 50.0 g H2O? 

 

II.Given the reaction CO(g) + H2O(g) ⇄ CO2(g) + H2(g), Keq = 1.0 at 1100oK.

 If 2 moles each of CO and H2O, and 1 mole each of CO2 and H2are brought together in the same vessel at the given temperature;

  1. a) will these amounts remain unchanged?
  2. b) what will be the amount of each of the reacting species in the final equilibrium mixture for the reaction above?  
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