r. chemistryadventure: the textbook

Page 364

3. How does it happen?

2. What are they? 1. Where are they? 3. How does it happen?

Is there a way to increase the solubility of ANY solution?

Yes: Henry’s Law

Solubility is proportional to pressure

S~P

S1/P1 = S2/P2

If sol. Is 1g/L at 1 atm, it will be 2 ______g/L at 2 atm Everyone: if solubility is 3.45 g/L at 5.6 atm, what is the solubility at 1 atm? 3.45/5.61 = S2/1

S2 = 0.614 g/L

(Henrys Law Worksheet)

5 Chemadventure Chapter 11: Solutions

4. How does it NOT happen?

5. Will heating or pressure help?

6. Make Crystals

How to make crystals:

Watch a video online here or play the flv file here or the avi file here

The process:

The principle:

recrystallization supersaturation

and cool

Or evaporate Or Reduce pressure

The process of forming the very first crystal during crystallization is called

nucleation

Fun nucleation video here

6

9. Making them 10. Using them

1. Make a hot supersaturated solution

saturated

7. Types 8. Measuring

2. What are they?

6. Make Crystals

9. Making them 10. Using them

1. Where are they?

5. Will heating or pressure help?

7. Types 8. Measuring

2.

4. How does it NOT happen?

Chemadventure Chapter 11: Solutions

7


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