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 1 options:
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.

Question 2 options:
Question 3 (1 point)
Imagine that you have 100g of water.

You start dissolving KNO3 in the water and you find that after you've dissolved about 55 g of KNO3, you can't dissolve any more; it just sinks to the bottom.

Approximately what is the temperature of the water?

Round your answer to the nearest whole number and submit the number only; no units.

Question 3 options:
Question 4 (1 point)
Saved
Increasing the temperature of the water will increase the amount of salt that it can dissolve.

Question 4 options:
True
False
Question 5 (1 point)
Saved
A solubility curve identifies how fast a solute will dissolve at different temperatures.

Question 5 options:
True
False
Question 6 (1 point)
Saved
This solubility curve indicates that at higher temperatures KNO3 will dissolve faster.

Question 6 options:
True
False
Question 7 (1 point)
Saved
A solubility curve tells you the minimum temperature needed to dissolve an amount of solute.

Question 7 options:
True
False