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Solutions in Chemistry Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. What is molarity?

Question 2 2. What is the equation used to determine the mass percent of a solute in a solution?

Question 3 3. A precipitate _______.

Question 4 4. A salt is _____.

Question 5 5. How is solubility determined?

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Question 6 6. What is the freezing point of a solution made by dissolving 100.0 g of sucrose (C12 H22 O11 ) into 950 g of water, where the Kf of water = 1.86 C/m, and the molar mass of sucrose = 342.2 g/mol?

Question 7 7. Why is vapor pressure considered to be a colligative property?

Question 8 8. Which of the following is NOT an example of a colligative property?

Question 9 9. Which of the following is true?

Question 10 10. A lab technician dissolved 2 mol of X in 1 liter of water in order to make a 2 M solution. What did they do wrong?

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Question 11 11. Which of the following does NOT affect the rate of dissolution of a solute?

Question 12 12. How much of a 16 M stock solution must you add to make 4 L of a 1 M diluted solution?

Question 13 13. A solute

Question 14 14. If I used 0.3 L of a stock solution to make 5 L of a 2 M diluted solution, what was the original molarity of the stock solution?

Question 15 15. How does a decrease in pressure affect the solubility of gases in a liquid?

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Question 16 16. What happens to vapor pressure when you add a solute to a solution?

Question 17 17. What is the dilution of solutions equation?

Question 18 18. Which of the following is the best definition of a colligative property?

Question 19 19. Using the solubility table in the lesson, which of these salts would you predict to be insoluble in water?

Question 20 20.

Suppose a solution at 50℃ contains 12g Potassium dichromate (K₂Cr₂O₇) per 100g of water.

Based on the provided solubility curve, how much additional mass of Potassium dichromate would be required to saturate the solution at the same temperature?

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Question 21 21. When is molality usually used?

Question 22 22. What is a solute?

Question 23 23. Which of the following is NOT true regarding solubility curves?

Question 24 24. What is the best definition of a solution?

Question 25 25. In the example, PbI2(s), the 's' symbol means ______.

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Question 26 26. MgCl2 and NaCl are both salts that are used to treat roads. Which salt will have the greatest effect on the freezing point and why?

Question 27 27. Sodium chloride ______.

Question 28 28. How many grams of CH3 OH is needed to make a 0.244 m solution in 400g of water?

Question 29 29. Which of the following statements best describes a supersaturated solution?

Question 30 30. What is an electrolyte?

Solutions in Chemistry Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next question. You can skip questions if you would like and come back to them later with the "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. You will lose your work if you close or refresh this page. Good luck!

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