18. Identify the following as saturated, unsaturated, or supersaturated
a. 100g of water containing 32g of sodium
nitrate at 40°C.
b. 100g of water containing 30g of sodium chloride
at 80°C.
C. 100g of water containing 45g of potassium
chlorate at 10°C.

When a chemist collects hydrogen gas over water, she ends up with a mixture of hydrogen and water vapor in her collecting bottle if the pressure in the collecting bottle is 97.1 kilopascals and the vapor pressure of the water is 3 2 kilopascals, what is the partial pressure of the hydrogen?