Mole Ratios in Reactions
Learning Objective
I can use mole ratios to calculate the amount of reactants and products in a chemical reaction.
Lesson Flow
Watch Video
The Mole: Avogadro's Number and Stoichiometry
Professor Dave Explains
Guided Notes
Key concepts students will learn:
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A mole is a very large number, specifically 6.022 x 10²³, and is called Avogadro's number.
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The molar mass of a substance is the mass of one mole of that substance, expressed in grams.
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In stoichiometric calculations, you can convert from mass to moles of one substance, then to moles and mass of another substance using mole ratios from the balanced equation.
Practice
9 questions • Multiple choice & Short answer
Exit Ticket
“If you start with 10 grams of methane (CH₄) in a combustion reaction, how many grams of carbon dioxide (CO₂) will be produced? Show all steps, including calculating molar masses, converting to moles, using the mole ratio, and converting back to grams. The balanced equation is CH₄ + 2O₂ → CO₂ + 2H₂O.”
Teacher Guide
Get the complete package:
- Answer keys for all questions
- Differentiation strategies
- Extension activities
- Printable student handouts
