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Part I Answers the following uestion in complete sentences.
1. Explain the difference between solution, colloid and suspension.
2. Give three different properties of a solution.
3. What is the phrase you should memorize to know what will dissolve/miscible in what and what affects rate of solubility.
4. Give a picture and then explain in words how a polar solvent dissolves a polar solute (assume solute is sugar and solvent is water).
5. Explain what unsaturated solution, saturated solution and saturated solution with solute in bottom of bucket in terms of amount of solute in a given quanitity of solvent. What special task do not to do to get a supersaturated solution.
6. Using your solubility table, how many grams of water do you need to have a saturated solution @55degC, if you added in 32.5g of potassium nitrate?
7. What is the molarity of a calcium chloride solution if I added 24.5g of the salt to make a 756ml of solution? If I dilute the solution until the volume of the dilute solution is now 3.21L, what is the new molarity?
8. Please circle the correct answer.
a. Freezing point (FP) depression: FPsolution > FPpure solvent or
FPsolution < FPpure solvent
Please give a brief explanation.
b. Boiling point (BP) elevation: BPsolution > BPpure solvent or
BPsolution < BPpure solvent
Please give a brief explanation.
2014-2015 Leaners need to do the following homework. If a question in the above review is the same question in the webpages below, you do not need answers in both places, just one place.
Answer: 6. 36.1g
7. 0.292M, 0.0688M