Question 1 (1 point)
Above is a solubility curve for KNO3.
Solubility has nothing to do with the speed of dissolving; it's a measure of how much salt will dissolve at a given temperature.
The y-axis of the graph shows you how much KNO3 will dissolve in 100 g of water. In other words, it tells you the maximum amount of solute that will dissolve at different temperatures.
The x-axis tells you the minimum temperature needed to dissolve different amounts of KNO3 in 100 g of water.
Approximately how many grams of KNO3 will dissolve in 100 g water at 0 degrees Celsius?
Type in the number only; no units. Round your answer to the nearest whole number.

Question 2 (1 point)
Approximately what is the minimum temperature needed to dissolve 10 g of KNO3 in 100 g H2O?
Round your answer to the nearest whole number and type in the number only; no units.