Solutions and Acids and Bases Phy Sci

Ch. 6 Review
1. Compare and contrast suspensions, colloids, and solutions (discuss particle size, ways to separate
if you can, etc)
2. How can you tell if a mixture is a colloid or a solution? What test can you do?
3. How can you tell if a mixture is a solution or a suspension?
4. Name two ways to separate a suspension
5. What is a solvent? What is a solute?
6. In a solution, how do you know which is the solvent and which is the solute? (ex: salt water or
bronze containing 30% Tin and 70% copper)
7. Explain why salt dissolves in water.
8. How can you tell sugar water from salt water if you are not allowed to taste it?
9. What happens to freezing temperature when you add salt to ice? What happens to boiling
temperature when you add salt to boiling water?
10. What is the equation for % concentration?
11. In a solution of salt water, containing 22 grams of salt and 100 grams of water, calculate the %
concentration of salt? % of water?
12. What are two ways you can increase solubility of a solid (like salt) in water?
13. What are two ways you can increase solubility of a gas (like carbon dioxide) in pop?
14. Compare unsaturated, saturated, and supersaturated solutions.
15. How do acids differ from bases? Give two examples of acids and two examples of bases.
16. What does the pH scale measure?
17. What ion is in excess in acids? Bases?
18. On a pH scale of 0-14, what pH represents acids, bases, and neutral solutions?
19. Explain how the pH of a solution can determine if a substance is a strong acid or weak acid.
20. How can you determine if an unknown solution is an acid or a base?
21. If an unknown substance is tested and has a pH of 11, what would you need to do to neutralize it?
22. When you mix an acid and a base, what TWO things do you always get?
23.Using your solubility curve from your packet, answer the following
a. If 40 grams of KNO3 is added to 100 g of H2O at 20C, it the solution saturated, unsaturated, or
b. How many grams of KCl would need to be added at 60C to make it a saturated solution?