Name_____________________
1. What is a solution?
2. The material that is actually being dissolved is called the ?
3.The substance that is doing the dissolving(normally exist in the greater amount) is called ?
4. What is meant by "polar bonding" or "polar compounds"?
5. Water is (1) polar (2) nonpolar
6. Most organic compounds are (1) polar () nonpolar
7. Why will NaCl dissolve in water but not in gasoline?
8. What is meant by a saturated solution?
9. Write the dissociation reaction for NaCl dissolving in water.
10 Write the dissociation reaction for CaCl2 dissolving in water.
11 Write the dissociation for (NH4)2S dissolving in water.
12. When a beaker of water is warmed up in the lab, bubbles appear on the side of the beaker long before the water reaches 100 C. What is the cause of this?
13. Are gases more soluble in hot water, or cold?
14. How does the solubility of a gas depend on pressure? (Use what you know about a soft drink.) (Henry's law)
15. Does the b.p. of water change if sugar is dissolved in it? Why?
16. What is meant by molar (M) concentration?
17. 50.0 ml of 6M HCl contains ? moles of HCl.
18. How would you prepare 500 ml of 0.10M CaCO3 from a 2.0M stock solution?
19. How would you prepare 250 ml of 0.50M NaNO3?
Write the complete, ionic, and net ionic equations for the following.
20. magnesium plus hydrochloric acid
21. barium chloride plus potassium carbonate
22. Calculate the Molarity of a solution containing 10.0 g of sulfuric acid in 500 ml of solution.
23. Calculate the mass of sulfuric acid in 2.00 l of 0.100 M solution.
24. What mass of calcium bromide is needed to prepare 150 ml of 3.5 M solution?
25. If 25 ml of 0.11 M sucrose is added to 10 ml of 0.52 M sucrose, what will be the resulting Molarity?
26. A chemist wants to dilute 50 ml of 3.5 M sulfuric acid to 2.0 M sulfuric acid. To what volume must it be diluted?
27. What will be the final concentration of a solution of 50 ml of 0.5 M sulfuric acid added to 75 ml of 0.25 M sulfuric acid.
28. What is the Molality of a solution that is 3.5 g of NaCl in 300g of water?
29. What is the boiling point of a solution which contains 250 g of C6H12O6 in 350.0 mL of water?
30. Arrange the following 1.0M solutions from the lowest boiling point to the highest boiling point NaCl, CaCl2, C6H12O6, Al(NO3)3
31. 25.0 g of an unknown non electrolyte solute is mixed into 500.0 g of water. The freezing point is noted to be -2.6°C. If the FP constant is -.52C/m what is the molecular mass of the solute?