Welcome to the article Solubility of potassium nitrate at 313 K is 62 g What mass of potassium nitrate would be needed to produce a saturated solution of KNO3. On this page, you will learn the essential and logical steps to better understand the topic being discussed. We hope the information provided helps you gain valuable insights and is easy to follow. Let’s begin the discussion!
Answer :
Final answer:
To prepare a saturated solution of KNO3 in 50 grams of water at 313K, 31 grams of KNO3 is needed. The effect of temperature on solubility depends on the salt, but typically solubility increases with temperature for most salts.
Explanation:
The solubility of potassium nitrate, KNO3, at 313K is 62 grams per 100 grams of water. If we want to prepare a saturated solution of KNO3 in 50 grams of water at 313K, we would need half the amount of KNO3 that is soluble in 100 grams of water, which is 31 grams of KNO3.
Regarding the effect of temperature on the solubility of a salt, it varies depending on the salt. For example, KNO3 has a steep solubility curve, indicating that its solubility increases dramatically with an increase in temperature. This is contrary to NaCl, whose solubility curve is relatively flat, displaying a minor change in solubility with temperature change. In general, however, most salts increase in solubility with an increase in temperature, but there are exceptions.
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