Chemistry
The following table gives the solubility of different salts at different temperatures.
| Temperature (in K) | Substance dissolved (in g) | |||
|---|---|---|---|---|
| KNO3 | NaCl | KCl | NH4Cl | |
| 283 | 21 | 36 | 35 | 24 |
| 293 | 32 | 36 | 35 | 37 |
| 313 | 62 | 36 | 40 | 41 |
| 333 | 106 | 37 | 46 | 55 |
| 353 | 167 | 37 | 54 | 66 |
Answer the following questions based on the table given above.
(a) What mass of KNO3 would be needed to produce a saturated solution of KNO3 in 50 grams of water at 313 K.
(b) If a saturated solution of KCl is made at 353 K and then cooled at room temperature, what would you observe? Explain.
(c) Find the solubility of each salt at 293 K.
(d) Which salt has the lowest solubility at 283 K?
(e) What is the effect of change of temperature on the solubility of a salt.
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