Unit 2: Ratios and Gas Relationships

Unit 2: Ratios and Gas Relationships

• • Chapters in Book: Chp 3.7-3.12, 5.2, 6.6-6.7, 11

    • Students will be able to:

      • • Applying the fundamental laws of chemistry to describe a reaction in terms of energy, matter, and ratios.

          1. Use energy, ratios, subscripts, and coefficients to describe a chemical reaction.

          2. Can predict amount of products formed or reactants used based on ratios.

          3. Can draw particle diagrams to represent subscripts and coefficients.

          4. Explain and apply limiting and excess reactants in a chemical reaction.

          5. Can express how energy changes in a reaction graphically

          6. Can identify reaction as endothermic or exothermic, and spontaneous or nonspontaneous

          7. Explain and apply the fundamental laws of chemistry in relation to the Law of conservation of mass including

             1. Explain the mole concept and compute molar mass.

             2. Law of constant composition

             3. Law of combining gas volume

• • • • Can predict gas behavior qualitatively and mathematically using the ideal gas law

        • • Can explain relationships between pressure, volume, gas moles and temperature..

            • Charles Law

            • Gay-Lussacs Law

            • Boyles Law

            • Avogadro’s Law

            • Combined Gas Law

            • Ideal Gas Law

          • Can identify and explain the conditions in which gases are most and least “ideal”.

          • Can apply Dalton’s law of partial pressures.

          • Can apply Graham’s law of diffusion

          • Can relate solid, liquid and gas behaviors to the kinetic molecular theory.

            • Can relate kinetic molecular theory to the behavior of gases according to the Maxwell-Boltzman distribution.

            • Can use a phase diagram to predict phases and phase changes.

      • Labs:

• • • • • Reaction Ratios Lab- Heating Baking soda (3 times)

          • Law of Conservation of Mass Popcorn Lab

          • Gas Identity Lab Activity

          • Electrolysis Demo

          • Gas Relationships Simulation Lab

          • Determining the Molar Mass of a gases

Relearning Suggestions for Unit 2 by Learning Target:

4. Applying the fundamental laws of chemistry to describe a reaction in terms of energy, matter, and ratios.

• Redo Gas Tube Google Form Practice 1 and Practice 2

• Redo Flame Test and Reactions Google Form as Review

• Book Reference: 3.1-3.9

• Videos

  • Endo vs Exo Reactions

5. Can predict gas behavior qualitatively and mathematically using the ideal gas law

• Book Reference: Chapter 11

• Mastering Chemistry Practice assignments (rework problems)

• Gas Law practice

  • Videos:

  • Ideal gas law

  • Gas Laws Practice

  • With Molar Mass

  • Deriving Gas Laws! Don't Memorize