Use the solubility curves to answer the questions below 1) a. What is the solubility of potassium chloride at 80•c? b. What is the solubility of potassium chloride at 40•c? 2) What mass of potassium chloride would crystallise out of solution if a saturated solution in 100g of water was cooled from 80•c to 40•c?

Use the solubility curves to answer the questions below

1) a. What is the solubility of potassium chloride at 80•c?
b. What is the solubility of potassium chloride at 40•c?

2) What mass of potassium chloride would crystallise out of solution if a saturated solution in 100g of water was cooled from 80•c to 40•c?

1) To determine the solubility of potassium chloride at different temperatures, we can refer to a solubility curve for potassium chloride. Unfortunately, since the solubility curve is not provided, I cannot give you the exact solubility values at 80°C and 40°C. Solubility is typically given in grams of solute per 100 grams of solvent (usually water) at a specific temperature.

2) To calculate the mass of potassium chloride that would crystallize out of solution, we need to determine the difference in solubility between 80°C and 40°C. Let's assume that at 80°C, the solubility of potassium chloride is 50 g/100 g of water, and at 40°C, the solubility is 30 g/100 g of water.

The initial amount of potassium chloride in the solution is 50 g (saturated solution in 100 g of water at 80°C). At 40°C, the solubility decreases to 30 g/100 g of water.

The amount of potassium chloride that crystallizes out can be calculated by subtracting the final solubility from the initial amount:

50 g - 30 g = 20 g

Therefore, 20 grams of potassium chloride would crystallize out of the solution when cooled from 80°C to 40°C.

Kindly Heart and 5 Star this answer, thanks!

Share this post