Question 1
A crystal is placed into a solution and the solution seems to solidify while getting much warmer at the same time. The solution must have been:
◦ supersaturated
◦ dilute
◦ saturated
◦ unsaturated
◦ concentrated
Question 2
A KCl solution is prepared by dissolving 25.0 g KCl in 250.0 g of water at 25 °C. What is the vapour pressure of the solution if the vapour pressure of water at 25 °C is 23.76 mmHg?
◦ 21.6 mmHg
◦ 22.7 mmHg
◦ 23.2 mmHg
◦ 24.9 mmHg