Solubility Curves Quiz

What is the main focus of Lesson 11?

• Introduction to new chemical compounds

• Introduction to chemical reactions

• Continuation of solubility curves with a new example

• Review of previous lessons

What should be plotted on the x-axis when graphing solubility curves?

• Solubility

• Volume

• Pressure

• Temperature

How many curves are expected to be drawn on the graph?

• Four

• Three

• Two

• One

What happens to the solubility of most salts as temperature increases?

• It fluctuates

• It decreases

• It remains constant

• It increases

At what temperature do the solubility curves of potassium chloride and potassium chlorate intersect?

• 70°C

• 100°C

• 90°C

• 80°C

What is the solubility of potassium chlorate at 50°C?

• 30 g/100g water

• 25 g/100g water

• 19 g/100g water

• 15 g/100g water

How much potassium chloride crystallizes out when a saturated solution at 70°C is cooled to 30°C?

• 20 grams

• 5 grams

• 10 grams

• 15 grams

What is the solubility of potassium chloride at 30°C?

• 28.0 g/100g water

• 35.5 g/100g water

• 40.0 g/100g water

• 33.0 g/100g water

At what temperature is the solubility of potassium chloride 40 g/100g water?

• 52°C

• 47°C

• 42°C

• 37°C

What is the significance of the intersection point of the two solubility curves?

• It marks the boiling point of the solution

• It represents the freezing point of the solution

• It shows the temperature at which both salts have equal solubility

• It indicates the maximum solubility of both salts