Solubility and Temperature Answer KeyVocabulary: concentration, dissolve, homogeneous mixture, solubility, solubility curve, solute,solution, solventPrior Knowledge Questions (Do these BEFORE using the Gizmo.)[Note: The purpose of these questions is to activate prior knowledge and get students thinking.Students are not expected to know the answers to the Prior Knowledge Questions.]1. What happens
...[Show More]
Solubility and Temperature Answer Key
Vocabulary: concentration, dissolve, homogeneous mixture, solubility, solubility curve, solute,
solution, solvent
Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
[Note: The purpose of these questions is to activate prior knowledge and get students thinking.
Students are not expected to know the answers to the Prior Knowledge Questions.]
1. What happens when you stir a spoonful of sugar into hot water?
The sugar dissolves into the water.
2. When sugar or another substance is dissolved in water, it disappears from view and forms
a homogeneous mixture with the water, also called a solution.
If you can’t see the sugar, how can you tell that it is there?
The water tastes sweet and may appear slightly cloudy. [You can boil or evaporate the
water to see solid sugar again.]
3. Does sugar dissolve more easily in hot water or cold water? Hot water
Gizmo Warm-up
A solution generally consists of two parts, a solute that
is dissolved and a solvent that the solute is dissolved
into. For example, sugar is a solute that is dissolved into
the solvent water. In the Solubility and Temperature
Gizmo™, you will study how temperature affects how
much solute will dissolve in a solution.
To begin, check that Potassium nitrate is selected and
the Temp. of the water is 20 °C. Click OK
[Show Less]
-by-Gary-Donell-SOLUTIONS-MANUAL-preview.jpeg)
-by-Gary-Donell-INSTRUCTOR’S-SOLUTIONS-MANUAL-preview.jpeg)
