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Solutes and Solubility
Investigation 1
Investigation 1
Solutes and Solubility
Phase 1 – Defined Understanding
Student Guide
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Student Guide with answers
Teacher PreLab
Prepare for the Experiment
Phase 2 – Dynamic Understanding
► Investigation One Summary – Solubility of Chemical Compounds
In Investigation One, you analyzed the differences in the solubility of chemical compounds. During this Investigation, you:
1. Tested the solubility of (4) four different masses of baking soda each in 100 ml of water:
- 0.3 g
- 1.5 g
- 5.0 g
- 10.0 g
2. Tested the solubility of sugar or salt samples in 100 ml of water.
► Investigation One Summary – Learning Goals
Through these experiments, you concluded that:
1. The unique combination of elements that make up each compound results in the differing solubility of each compound. The different combination of elements determines that each compound is soluble in water up to a different concentration.
2. Solutes can dissolve and form solutions only up to a concentration corresponding to their specific saturation points. Any amount of solute greater than the saturation point will not dissolve.
Concept Slides
Launch and Discuss
Mathematics Concepts in This Investigation
- (in)direct relationships
- qualitative/quantitative properties
- comparing (non)measurable characteristics
- ratios
- division
- mass in grams
- volume in mL
- data table
- data analysis
- measuring mass using a digital scale
- decimals to the nearest tenth
- time in seconds/minutes
- predict/verify results
- analyzing chemical formulas
- estimation
- greater than/less than/equal to