Quiz 1

State what part of the solution is left behind after evaporation occurs.

• Solvent

• Solute

State what part of the solution is evaporated away.

• Solute

• Solvent

State whether evaporation works by heating or cooling the solution.

• Heating

• Cooling

State what piece of laboratory equipment can make the evaporation process go faster.

• Bunsen burner

• Beaker

• Flask

• Crucible

Evaporation is used in cooking a lot, notably in the creation of sauces.

A pasta sauce will evaporate water as it cooks, which causes the flavour of the sauce to become __________. This is because the sauce is becoming more _____________

• stronger/ dilute

• weaker / dilute

• stronger / concentrated

• weaker / concentrated

Evaporation is used when we want to keep the __________ but not the __________

• solute / solvent

• solvent / solute

Evaporation is done by heating the solution to the ________________ of the solvent so that it evaporates. The solute often has a ___________ boiling point.

• melting point /

  higher

• `boiling point /

  higher

Evaporation works by the process of

• heating and saturation

• cooling and saturation

During evaporation, the solution reaches the boiling point of the solvent and it __________ leaving the __________ behind.

• evaporates /

  solution

• condenses / solute

• evaporates / solute

Determine which of the following two scenarios you would use distillation for.

• The solute and solvent have identical boiling points

• The solute and solvent have different boiling points.