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Temperature Depependence of Salt Solubility AK
Chemistry
Temperature Dependence of Salt
Solubility
Experiment 1
1. Record your results for the four solubility temperatures of KCl as follows:
a
Temperature at which the solubility is 3.5g / 10 mL (C)
23.1 C
39.8 C
b
Temperature at which the solubility is 4g / 10mL (C)
c
Temperature at which the solubility is 4.5g / 10mL (C)
56.8 C
d
Temperature at which the solubility is 5g / 10mL (C)
74.8 C
2. Convert your grams/10 mL values to grams/100 mL values and plot a
solubility curve for potassium chloride. The horizontal axis is the temperature
scale in degrees C, and the vertical scale is the solubility in g/100 mL.
3.5g/10mL=35g/100ml temp=23.1 C
4g/10ml=40g/100ml temp=39.8 C
4.5g/10ml=45g/100ml temp=56.8 C
5g/10ml=50g/100ml temp= 74.8 C
3. Here is the official solubility data for KCl in grams/100 mL H
2
O:
At 30C:
37.1g/100ml H20
At 50C:
42.9g/100 ml H20
At 70C:
48.5g/100 ml H20
At 90C:
53.8g/100 ml H20
Plot these points on a new graph.
experimental solubulity
3.5g/10ml=35g/100ml=23.1 C
4g/10ml=40g/100ml=39.8 C
4.5g/10ml=45g/100ml=56.8 C
5g/10ml=50g/100ml= 74.8 C
4. Obtain the solubility of potassium chloride in g/100 mL of H
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- Spring '15
- Solubility, Sodium chloride, Salt Solubility AK Chemistry , Solubility Experiment
