AP Chemistry Learning Objectives
The student can:
 1.17 The student is able to express the law of conservation of mass quantitatively and qualitatively using symbolic representations and particulate drawings.
 2.4 The student is able to use KMT and concepts of intermolecular forces to make predictions about the macroscopic properties of gases, including both ideal and nonideal behaviors.
 2.5 The student is able to refine multiple representations of a sample of matter in the gas phase to accurately represent the effect of changes in macroscopic properties on the sample
 2.6 The student can apply mathematical relationships or estimation to determine macroscopic variables for ideal gases.
 2.12 The student can qualitatively analyze data regarding real gases to identify deviations from ideal behavior and relate these to molecular interactions.

Unit Essential Questions
 How are the properties of gases measured and described?
 What are the mathematical relationships among the quantities used to describe gases?

Understandings
 a theory attempts to explain a body of observations
 The relationship between Celsius and Kelvin temperature scales and why Kelvin temperatures are used to describe gases
 gases may be described by the volume, pressure, temperature, and number of particles in a particular sample
 Gases may be described by the ideal gas law, because deviations from this behavior are generally negligibly small

Prior Knowledge
 symbols and charges of common monatomic ions (see list) predicted from their position on the periodic table
 common polyatomic ions (see list)
 chemical nomenclature  ionic and covalent compounds
 reaction prediction for reactions involving gases
 stoichiometry and molemole ratios
 units of measurement for volume, mass, moles, pressure. temperature

Prior Skills
 writing chemical formulas for ionic and molecular compounds
 writing and balancing chemical equations to describe reactions
 finding stoichiometric relationships in chemical reactions
 rearranging simple algebrain equations to solve for each variable

Learning Targets Ch. 5.1 Substances that Exist as Gases 
Students will know....
 the difference between the Kelvin temperature scale and the Celsius scale.
 the difference between the terms gas and vapor
 the terms velocity, acceleration, force, newton, energy, joule, kinetic energy, pressure and pascal.

Students will be able to....
 List at least ten common substances that exist as gases at 1 atmosphere (atm) pressure and 25oC.
 List four physical characteristics of all gases.

Learning Targets Ch. 5.2 Pressure of a Gas Problems 5.13, 5.14 
Students will know....
 units of measurement for pressure in a gas
 equalities relating these units of measurement and how to make conversion factors of them

Students will be able to....
 Convert between torr, mmHg, atmospheres, and pascals.
 State the difference between opentube manometers and closedtube manometers and explain how each is used.

Learning Targets Ch. 5.3 The Gas Laws Problems 5.175.26 
Students will know....
 Write, explain, and apply each of the following:
 Boyle’s law (P µ 1/ V and P1V1 = P2V2).
 Charles’s law (P µ T and V1/ T1 = V2/ T2).
 Avogadro’s law (V µ n).

Students will be able to....
 measure temperature with the Celsius scale and convert it to Kelvin
 State laws as useful equations and apply them to real and hypothesized scenarios involving gases
 Explain the laws desriptively and by using particle models

Learning Targets Ch. 5.4 The Ideal Gas Equation RQ 5.29, 5.30; Problems 5.32, 5.34, 5.35, 5.36, 5.37, 5.38, 5.485.52 
Students will know....
 Ideal gas law (PV = nRT)
 standard temperature and pressure (STP) and demonstrate that at STP one mole of gas occupies 22.4 liters.

Students will be able to....
 Explain the derivation of the gas constant (R).
 Use the Ideal gas equation, determine the moles of a gas from measurements
 Use density, the Ideal gas equation and molar mass to .

Learning Targets Ch. 5.5 Gas Stoichiometry Problems 5.535.64 
Students will know....
 that due to Avogadro's law, mole ratios in chemical equations for gases are also volume ratios

Students will be able to....
 use Avogadro's law in stoichiometric problems involving gases
 use the Ideal Gas Law in stoichiometric problems involving gases

Learning Targets Ch. 5.6 Dalton's Law of Partial Pressures Problems 5.565.76 
Students will know....
 Dalton’s law of partial pressure.
 the relationship of pressure and moles in a sample of gas: mole fraction
 that mole fraction is useful with gases having low reactivity

Students will be able to....
 State Dalton’s law of partial pressures and utilize it in problems involving mixtures of gases including the collection of gases over water.
 Calculate the mole fraction for each gas in a mixture and use the mole fraction to calculate partial pressures of gases.
 Define mole fraction and verify that Pa = XaPtotal.

Learning Targets Ch. 5.7 The Kinetic Molecular Theory of Gases (Exploring Properties of Gases Lab) 
Students will know....
 Explain the four assumptions upon which the kinetic molecular theory of gases is based.
 State how the kinetic molecular theory of gases qualitatively explains the following properties:
 compressibility
 diffusion
 low density
 Describe the process of gaseous diffusion.

Students will be able to....
 Explain how a real gas, behaving nonideally, differs from an ideal gas as described by the four assumptions in the kinetic molecular theory of gases.
 Describe conditions under which a real gas will approximate an ideal gas.
 Perform calculations using rootmeansquare speeds.

Learning Targets Ch. 5.8 Deviation from Ideal Behavior Additional Problems TBA 
Students will know....
 the conditions under which gases do not behave as ideal gases

Students will be able to....
 Apply van der Waal’s equation to real gases.

Daily Learning Activities
Day 15 October 20 & 24 
Gas Laws  Intro
 Read The Kinetic Theory together in class; discuss the meaning of the term theory in science.
 Read Properties of Gases with a focus on the variables and units of measure used in describing quantities of gases. Do a few examples of conversion factors.
 Particle models of gases  model the models
 Background and preparation for Gas Law Inquiry Lab

Day 16 October 25 & 26 
Gas Law Inquiry Lab
Assignment 2 (due Oct 31/Nov 1) Be sure to be deliberate with your answers, paying close attention to what you are asked to do. 
Day 17 October 27 & 28 
Discussion of Chapter 5 Directed Reading Part 1 (5.15.4) and its relationship to the lab
 Math details, particle models, and graphs
Prep for Gasometric Analysis lab
 Dalton's Law of Partial Pressures and collecting a gas over water
 Gas stoichiometry: applications of Avogadro's principle and V = nRT

Day 18 October 31 & November 1 
Gasometric Analysis lab data collection
 Assignment 2 due
 Gas Law Lab due  analysis

Day 19 November 2 & 3 
 Gas law stoichiometry and the last part of the guided reading handout
 Practice scenarios and problemsolving

Day 20 November 4 & 7 
 Assignment 3 due
 Gasometric Analysis Lab due

Day 21 November 8 & 9 
 Gas Laws Quiz
 Prepare for Thermochemistry unit directed reading and intro


Links and Resources
Bozeman Science gas laws
