CHEMISTRY 101 M9L2M1SolubilityTemperatureGizmo-1.doc
Student Exploration: Solubility and Temperature
NCVPS Chemistry Fall 2014
Vocabulary: concentration, dissolve, homogeneous mixture, solubility, solubility curve, so
...
CHEMISTRY 101 M9L2M1SolubilityTemperatureGizmo-1.doc
Student Exploration: Solubility and Temperature
NCVPS Chemistry Fall 2014
Vocabulary: concentration, dissolve, homogeneous mixture, solubility, solubility curve, solute,
solution, solvent
Prior Knowledge Questions (Do these BEFORE using the Gizmo.)
1. What happens when you stir a spoonful of sugar into hot water? Sugar dissolves in water
when mixed
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? _taste___
_________________________________________________________________________
3. Does sugar dissolve more easily in hot water or cold water? _Hot__
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.
1. In this solution, what is the solute? Potassium nitrate What is the solvent? water
2. Click Add 10 g to mix 10 g of potassium nitrate into the water.
A. Did all of the potassium nitrate dissolve? __yes__
B. How can you tell? _You can’t see the substance______
______________________________________________
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