01:160:162 Lecture Notes - Lecture 46: Solubility Equilibrium, Iodate, Purified Water
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Solubility:
1. The volume of water needed to dissolve 0.0589 grams of calcium chromate is ____ L.
(Assume no volume change upon addition of the solid.)
2. The mass of magnesium hydroxide that is dissolved in 225 mL of a saturated solution is ______ grams.
3. Consider these compounds:
| A. MgCO3 |
| B. CuS |
| C. Mn(OH)2 |
| D. Cu(OH)2 |
Complete the following statements by entering the letter corresponding to the correct compound.
Without doing any calculations it is possible to determine that iron(II) carbonate is more soluble than __, and iron(II) carbonate is less soluble than __.
It is not possible to determine whether iron(II) carbonate is more or less soluble than __ by simply comparing Ksp values.
4.
| A. PbCrO4 |
| B. AgBr |
| C. Zn3(PO4)2 |
| D. Ca3(PO4)2 |
Complete the following statements by entering the letter corresponding to the correct compound.
Without doing any calculations it is possible to determine that barium phosphate is more soluble than __, and barium phosphate is less soluble than __.
It is not possible to determine whether barium phosphate is more or less soluble than __ by simply comparing Ksp values.
5. For each of the salts on the left, match the salts on the right that can be compared directly, using Ksp values, to estimate solubilities.
(If more than one salt on the right can be directly compared, include all the relevant salts by writing your answer as a string of characters without punctuation, e.g, ABC.)
| 1. | lead sulfate ____ | A. MnS | ||
| 2. | lead phosphate ____ | B. BaSO4 | ||
| C. Ba3(PO4)2 | ||||
| D. Mn(OH)2 |
Write the expression for K in terms of the solubility, s, for each salt, when dissolved in water.
| lead sulfate | lead phosphate | |||
| Ksp = ____ | Ksp = ____ | |||
Note: Multiply out any number and put it first in the Ksp expression. Combine all exponents for s.
