CURRICULUM MAP: 10451.map
Chemistry I (HON) 519
Unit 5 Gases
TIME FRAME:
GRADE: 11-12
CONTACT:
MAP LEVEL:
1. What factors must be known to determine the amount of gas present?
2. How can gas laws can be used to explain the behavior of gases?
3. Do the molar masses and densities of gases relate?
4. Can the number of moles of a dry gas collected over water be determined?
5. Can the Kinetic theory of gases help us to better understand the behavior of gases?
6. How do real gases differ in behavior from ideal gases?
Using pressure, temperature and volume to define a gas
The gas laws
Gas law calculations
Stoichiometry with gases not at STP
Density of gases
Gases collected over water and the vapor pressure of water
Lab tests for common gases--oxygen, hydrogen and carbon dioxide
Partial pressures and mole fraction
The Kinetic Theory of Gases
Effusion
Boltzmann distribution
Real vs. ideal gases
Students will develop the ability to:
Determine the amount of iron in a mixture using a redox titration in the lab UCONN lab #7
Convert between any units of pressure and temperature
Identify which piece of equipment is needed to measure a pressure
Identity which gas law would apply given the circumstances
Perform calculations using all of the gas laws
Determine the density of gases using the gas laws
Utilize Dalton's law to determine the pressure of a dry gas after it has been collected over water
Perform all stoichiometric calculations involving gases
Determine the molar mass of a volatile liquid in the lab UCONN lab #8
Determine the partial pressure of any gas in a mixture
Use the kinetic theory of gases to predict gas behavior
Draw Maxwell Boltzmann distribution curves at different temperatures and use them to explain the behavior of samples of gas
Recognize that all gases at the same temperature have the same average kinetic energy
Calculate the speed of gas molecules at different temperatures
Determine which gas with effuse faster and how much faster than another gas
Explain the deviation in behavior associated with real gases
Appreciate that cooling by expansion is due to a deviation from ideal behavior
Explain how air bags function
Coop groups--peer edit Advanced study assignment for Lab # 7--iron determination, after completing the ASA the night before for homework
Complete a redox titration in the lab and use the data obtained to determine the % iron in a mixture
Practice with all types of gas law calculations
Pressure, temperature and volume conversions
Demo: soda geyser and elephant toothpaste
Stoichiometry problems involving gases not at STP
Coop groups--peer edit Advanced study assignment for molar mass of an unknown liquid lab having done the assignment for homework the previous night
Lab activity to determine the molar mass of an unknown liquid UCONN lab #8
Use of the vapor pressure of water vs. temperature table to solve problems involving gases collected over water
Application of the Kinetic Theory of Gases to explain gas properties
Analysis of Boltzmann distribution graphs and their use in explaining evaporation
Attempt to explain the behavior of real gases and how and why they differ from ideal gases
Coop. groups--peer edit advanced study assignment for determination of % iron in a mixture lab
Lab activity to determine the % iron in a mixture by conducting a redox titration on the mixture
Read article about air bags
Advanced study assignment for labs
Ability to analyze and interprete data
Lab report including averages, standard deviation, % error and error analyses
Problem quizzes involving end of chapter problems
Tests--problems, essays, short answer and a few multiple choice questions (lab calculations will be covered on the tests)
UCONN exam #2 covering chapters 4 and 4 along with experiments #3-6--short answer, essays and problems