Solutions and Solubility

Question 1

A beaker contains a solution. A single solute crystal is added to the solution. Immediately, crystals form in the solution. Which term best describes the solution before the crystal was added?

Revolt · Accepted Answer

supersaturated

Question 2

Under which conditions will sugar most likely dissolve fastest in a cup of water?

Revolt · Accepted Answer

sugar crystals with stirring at 15°C

Question 3

The graph below shows how solubility changes with temperature.What is the solubility of Na2HAsO4 at 60°C?

Revolt · Accepted Answer

65 g/100 mL of water

Question 4

Which method would increase the solubility of a gas?

Revolt · Accepted Answer

increasing the pressure

Question 5

Which is true about the dissolving process in water?

Revolt · Accepted Answer

Molecules or ions of a solute spread throughout the water molecules.

Question 6

A chemist has dissolved a certain substance in water. The chemist knows that more of the substance could be dissolved into the water before it stops dissolving. Therefore, the current solution is

Revolt · Accepted Answer

unsaturated

Question 7

A chemist dissolved crystals of an unknown substance into water at room temperature. He found that 33 g of the substance can be dissolved into 100 mL of water. What property of the unknown substance was the chemist most likely investigating?

Revolt · Accepted Answer

its solubility

Question 8

Which factor increases the rate of dissolution in an unsaturated solution?

Revolt · Accepted Answer

increasing the temperature

Question 9

Which is true about dissolving a polar substance in water?

Revolt · Accepted Answer

The solute particles are carried into the solution.

Solutions and Solubility Answers

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