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Solutes and Solubility
Investigation 2
Investigation 2
Solutes and Solubility
Phase 1 – Defined Understanding
Student Guide
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Access Teacher Guide
Student Guide with answers
Teacher PreLab
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Phase 2 – Dynamic Understanding
► Investigation Two Summary – Stirring and Solubility
In Investigation Two, you analyzed how stirring affects the solubility of different chemical compounds. During this Investigation, you:
1. Tested the effect of stirring on the rate of solubility for sugar, salt, and baking soda.
► Investigation Two Summary – Learning Goals
Through these experiments, you concluded that:
1. Stirring increases the solubility of a solute. More of a solute can be dissolved in a solvent when the solution is stirred as compared to when it is not stirred.
2. The rate of solubility of a solute can be changed by stirring. Stirring increases the rate of solubility of a solute. A solute will take less time to dissolve in a solvent if stirred than if the solution is not stirred.
Concept Slides
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Mathematics Concepts in This Investigation
- rate of solubility (g/min)
- data table
- data analysis
- predict/verify results
- analyzing chemical formulas
- mass in grams
- decimals to nearest tenth/hundredth
- time in minutes
- comparing (non)measurable characteristics
- greater than/less than/equal to
- division
- problem solving