Concentration Make-up

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Now for the mind part

  1. Graph on page 8 of the packet the phase change graph of water.
  2. What is the melting point?
  3. What is the boiling point?
  4. How are the melting point and freezing point the same?
  5. Which substance used in the notes has a freezing point of –102.4 ° C?

The Process of Dissolving

1. What is an exothermic process?

2. If a substance has a negative heat of solution, which process is greater the exothermic or the two endothermic?

3. If a substance has a negative heat of solution, will increasing the temperature decrease or increase its solubility?

4. What is the heat of solutions value for CuSO4 * 5H2O?

Solutions

1. Give one example from the table of a solid dissolving in a solid.

2. List at least four physical properties of a solution.

3. What is does the golden rule for dissolving state?

4. What do we call two liquids that will not dissolve in each other?

 Suspensions and colloids - Solubility of solids and gases