INTERPRETING DATA FROM SOLUBILITY CURVES
NAME____________________________________
DATE_________________
DIRECTIONS: Use the handout graph to solv the following
problems.
___________1) What is the solubility of potassium nitrate in 100 grams of
water at 100 °C ?
___________2) What is the solubility of potassium chloride in 100 grams
of water at 50 °C ?
___________3 )What is the solubility of sodium chloride in 100 grams of
water at 90 °C ?
___________4) What is the minimum temperature needed to dissolve 180 grams
of potassium nitrate in 100 grams of water
___________5) What is the minimum temperature needed to dissolve 35 grams
of potassium chloride in 100 grams of water
___________6) At what temperature do potassium chloride and potassium nitrate
have the same solubility ?
___________7 )At what temperature do potassium nitrate and sodium chloride
have the same solubility ?
___________8) If 110 grams of potassium chloride are mixed with 100 grams
of water at 20 °C, how much will not dissolve ?
___________9) If 250 grams of potassium nitrate are mixed with 100 grams
of water at 85 °C, how much will not dissolve ?
___________10) If 50 grams of sodium chloride are mixed with 100 grams of
water at 80 °C, how much will not dissolve ?
___________11) If 15 grams of potassium chloride are added to 100 grams
of water at 30 °C, how much more must be added to saturate the solution?
___________12) If 170 grams of potassium nitrate are added to 100 grams
of water at 80 °C, how much more must be added to saturate the solution
?
___________13) If 10 grams of sodium chloride are added to 100 grams of
water at 100 °C, how much more must be added to saturate the solution
?
___________14) 100 grams of water are saturated with potassium chloride
at 35 °C. If this solution is heated to 95oC, how much more can be
dissolved ?
___________15) 100 grams of water are saturated with potassium nitrate at
20 °C. If the solution is heated to 80oC, how much more can be dissolved?
___________16) 100 grams of water at 50 °C are saturated with sodium
chloride. If this solution is heated to 100 °C, how much more can be
dissolved ?
___________17) 100 grams of water at 95 °C are saturated with potassium
nitrate. If this solution is cooled to 35oC, how much of the solid will
precipitate(change from the dissolved state to the solid state) ?
___________18) 100 grams of water at 90 °C are saturated with potassium
chloride. If this solution is cooled to 35oC, how much of the solid will
precipitate?
___________19) How much potassium nitrate will dissolve in 50 grams
of water at 95 °C ?
___________20) How much potassium nitrate will dissolve in 10 grams
of water at 10 °C ?
___________21) How much potassium chloride will dissolve in 50 grams
of water at 50 °C ?
___________22) How much potassium chloride will dissolve in 25 grams
of water at 80 °C ?
___________23) If 50 grams of water are saturated at 90 °C with potassium
nitrate and then cooled to 40°C, how much will precipitate ?
___________24) What temperature is needed to dissolve twice as much potassium
chloride as can be dissolved at 0 °C in 100 grams of water ?
___________25) What temperature is needed to dissolve twice as much potassium
nitrate as can be dissolved at 10 °C in 100 grams of water ?
Comments and questions to:
Jack O'Donnell