Empirical and Molecular Formulas
Students will determine empirical and molecular formulas from percent composition or combustion analysis data.
Key Questions
- Determine the empirical and molecular formulas of compounds from experimental data.
- Differentiate between empirical and molecular formulas, explaining their significance.
- Analyze how combustion analysis data is used to deduce chemical formulas.
Common Core State Standards
About This Topic
This topic explores the controversial policy of Affirmative Action, the use of race-conscious policies to address historical discrimination and promote diversity. Students examine the legal history from Regents v. Bakke to the most recent Supreme Court rulings. They analyze the tension between the goal of 'substantive equality' (remedying past wrongs) and 'procedural equality' (colorblindness).
For seniors, this is a highly relevant topic as they apply to college. It requires them to engage with complex ethical questions about fairness, merit, and the role of institutions in shaping a diverse society. This topic comes alive when students can physically model the patterns of admissions and hiring through a simulated committee process where they must balance competing values.
Active Learning Ideas
Simulation Game: The Admissions Committee
Students act as a college admissions board. They are given 'profiles' of applicants with varying grades, backgrounds, and life experiences. They must decide who to admit while following (or challenging) specific diversity goals.
Formal Debate: Colorblind vs. Race-Conscious
Students debate the 'Justice Roberts' view ('The way to stop discrimination on the basis of race is to stop discriminating on the basis of race') versus the 'Justice Sotomayor' view (that race still matters in American life).
Gallery Walk: Affirmative Action Around the World
Display how other countries (like India or South Africa) handle 'reservations' or 'quotas' for marginalized groups. Students compare these systems to the US 'holistic review' model.
Watch Out for These Misconceptions
Common MisconceptionColleges use 'quotas' to meet diversity goals.
What to Teach Instead
Quotas were ruled unconstitutional in the 1978 Bakke case. Peer investigations into 'Holistic Review' help students understand that race can be a 'plus factor' but not a fixed number or a separate track.
Common MisconceptionAffirmative action only benefits Black students.
What to Teach Instead
Historically, white women have been the largest beneficiaries of affirmative action policies in employment. Peer-led 'Demographic Data Analysis' helps students see the broad impact of these policies across different groups.
Suggested Methodologies
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Frequently Asked Questions
What is 'Strict Scrutiny' in the context of race?
What did the Supreme Court rule in the 2023 Harvard/UNC cases?
How can active learning help students understand Affirmative Action?
What are 'Race-Neutral' alternatives?
Planning templates for Chemistry
More in The Mathematics of Reactions
Intermolecular Forces
Distinguishing between intramolecular bonds and the attractions between separate molecules.
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Types of Intermolecular Forces
Students will identify and compare dipole-dipole forces, hydrogen bonding, and London dispersion forces.
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Metallic and Network Covalent Bonding
Examining the unique structures of metals and giant covalent networks like diamond and graphite.
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Properties of Solids: Ionic, Molecular, Covalent Network, Metallic
Students will classify solids based on their bonding and predict their physical properties.
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The Mole Concept and Avogadro
Bridging the gap between the microscopic world of atoms and the macroscopic world of grams.
2 methodologies