Solubility Curve ReTest
Refer to graph to answer the
following questions:
1. What mass of
Ammonium Chloride,
NH4Cl, will dissolve at 50°C
in 100 g of water?
2. What is less soluble in
100 g of water at 10°C
sodium nitrate, NaNO3, or
sodium chloride, NaCl?
3. Will 100 g of potassium
nitrate, KNO3, at 50°C in
100 g of water create a
saturated, unsaturated, or
supersaturated solution?
4. 10 g of which substance
will dissolve at 90°C in 100
g of water?
5. What mass of Sodium Chloride, NaCl, will dissolve at 90°C in
100 g of water?
6. What mass of Potassium Nitrate,KNO3. will dissolve at 20°C in
100 g of water?
7. What mass of Potassium Chromate, KClO3, will dissolve at
50°C in 100 g of water?
8. in 100 g of water at 60°C will 30 g of potassium chloride, KCl,
be saturated or unsaturated?
Solubility Curve ReTest
The solubility curves for potassium nitrate, KNO3, and five solids, A, B, C, D
and E, are shown for the temperature range 0 °C to 100 °C. The solubility is
given in grams of the solid that will dissolve in 100 grams of water.
For each question, select from the graph the letter A, B, C, D or E
that represents the solid described. (Each letter may be used
once, more than once or not at all.)
9. Which solid has the lowest solubility at 60 °C?
10. Which solid has the same solubility as potassium nitrate,
KNO3, at 52 °C?
11. Which solid has a solubility that changes least with
temperature?
12. Which solid would give a deposit of 20 g if a saturated
solution in 100 g of water at 60 °C was cooled to 20 °C?
13. Which solid would be deposited in the greatest mass if a
saturated solution in 100 g of water at 100 °C was cooled to 80
°C?
Solubility Curve ReTest
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Solubility Curve ReTest
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