Solubility Curve

At approximately what temperature does the solubility of sodium chloride, NaCl, match the solubility of potassium chlorate?

• 77 ºC

• 38 ºC

• 28 ºC

• 85 ºC

How many grams of ammonium chloride, are soluble in 100 g of water at 95 ºC?

• 71 grams

• 75grams

• 40 grams

• 65 grams

Which solute does not increase in solubility as temperature rises?

• NH₃

• NaNO₃

• KNO₃

• NaCl

When 20 grams of potassium chlorate, KClO₃, is dissolved in 100 grams of water at 40 ºC, the solution can be correctly described as:

• supersaturated

• saturated

• unsaturated

When 20 grams of KNO₃ is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:

• supersaturated

• saturated

• unsaturated

When 50 grams of hCl is dissolved in 100 grams of water at 50 ºC, the solution can be correctly described as:

• supersaturated

• unsaturated

• saturated

A solution of potassium chlorate, KClO₃, has 20 grams of the salt dissolved in 100 grams of water at 70 ºC. Approximately how many more grams of the salt can be added to the solution before reaching the saturation point?

• 10 grams

• 15 grams

• 6 grams

• 20 grams

A beaker containing 80 grams of lead(II) nitrate, Pb(NO₃)₂, in 100 grams of water has a temperature of 30 ºC. Approximately how many grams of the salt are undissolved, on the bottom of the beaker?

• 20 grams

• 80 grams

• 66 grams

• 14 grams

What is the solubility of NaNO₃ at 30 degrees Celsius?

• 100 grams

• 97 grams

• 75 grams

• 30 grams

At what temperature can 50 grams of NH₄Cl be fully dissolved in water?

• 48 degrees

• 40 degrees

• 59 degrees

• 38degrees