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Product 12903

By: Mark A. Case, Emmaus High School, Emmaus, PA

With the Can You Make 2.00 Grams of a Compound? Stoichiometry Laboratory Kit, students become industrial chemists! Their goal is to apply stoichiometric relationships from a balanced equation to make 2.00 grams of a product.

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Students become industrial chemists! Their goal—to apply stoichiometric relationships from a balanced equation to make 2.00 grams of a product. Using two compounds, students calculate the amount of each chemical they need and, through a double displacement reaction, produce exactly 2.00 grams of a precipitate. The dried precipitate will be turned in for verification and grading. The percentage of error for the experiment will also be calculated. Teacher Notes provide ample background information, detailed procedures and sample data. A reproducible student worksheet is also provided. Ample amounts of six different chemicals are provided.

Super Value Kit is complete for 5 classes of 24 students working in pairs.

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Asking questions and defining problems
Planning and carrying out investigations
Analyzing and interpreting data
Using mathematics and computational thinking
Constructing explanations and designing solutions

Disciplinary Core Ideas

HS-PS1.B: Chemical Reactions
HS-PS2.B: Types of Interactions
HS-ETS1.A: Defining and Delimiting Engineering Problems
HS-ETS1.B: Developing Possible Solutions
HS-ETS1.C: Optimizing the Design Solution

Crosscutting Concepts

Patterns
Scale, proportion, and quantity
Energy and matter
Stability and change

Performance Expectations

HS-PS1-3. Plan and conduct an investigation to gather evidence to compare the structure of substances at the bulk scale to infer the strength of electrical forces between particles.
HS-PS1-6. Refine the design of a chemical system by specifying a change in conditions that would produce increased amounts of products at equilibrium.
HS-PS4-1. Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media.