1. What is the solubility of potassium chloride at 10oC? grams

Question

2. What is the solubility of potassium chloride at 80oC? grams
3. What usually happens to the solubility of solids as temperatures increases?
4. What is the temperature where 80 grams of potassium nitrate (KNO3) is saturated? oC
5. A solution with 100 grams of NaNO3at 10oC is considered unsaturated, saturated

Answer 1

1. The solubility of potassium chloride (KCl) at 10°C is approximately 34 grams per 100 milliliters of water.

2. The solubility of potassium chloride at 80°C is approximately 56 grams per 100 milliliters of water.

3. Generally, the solubility of most solid substances increases as temperature increases. This means that more of the solid can dissolve in a given volume of solvent at higher temperatures.

4. The temperature where 80 grams of potassium nitrate (KNO3) is saturated is around 60°C. However, it is important to refer to a specific solubility chart for potassium nitrate to confirm the exact temperature, as solubility can vary slightly depending on the source.

5. A solution with 100 grams of NaNO3 at 10°C is considered unsaturated because, at that temperature, the solubility limit for NaNO3 is around 85 grams per 100 milliliters of water. Therefore, if the amount of sodium nitrate is less than its solubility at that temperature, the solution remains unsaturated.