CURRICULUM MAP: 10457.map
Chemistry I (SCP) 522
Unit 7 States of Matter & Distillation
TIME FRAME:
GRADE: 11-12
CONTACT:
MAP LEVEL: 1
How can solutions be purified in the lab?
Can the boiling point of a substance be changed?
What is happening with energy as a substance goes from a solid to a liquid to a gas?
Measuring temperature and pressure and converting between units
The boiling process
Time, temperature heating, and cooling curves
Energy changes during heating and cooling through the 3 states of matter and heats of fusion and vaporization
Specific heat
Sublimation
Graphing vapor pressure vs temperature and using the graph to determine the boiling point of water at a variety of pressures
The process of distillation
The workings of a pressure cooker
Students will develop the ability to:
Convert between various temperature and pressure units
Draw and interpret heating, cooling curves
Prepare a graph of vapor pressure vs. temperature for water and drawing the best fit curve
Use the above graph to determine the boiling point of water at a variety of pressures
Set up and complete a distillation of sea water to obtain pure water
Use an electrical conductivity apparatus to determine the purity of water
Determine the mass accountability of a distillation
Explain energy changes during the conversion of a solid to a gas
Practice converting between various temperature and pressure units i.e. psi to mm of Hg
Develop an understanding of how a mercury barometer works
Analyze heating and cooling curves and explain the energy changes that occur as solids are heated to gases
Use intermolecular forces of attraction to predict how large or small heats of fusion and vaporization wil be
Use specific heat values to predict how fast or slow something will heat up
Prepare a graph of water's vapor pressure at various temperatures and draw the best fit curve
Use this graph to determine the boiling point of water at various pressures
Demo: boiling water with no heat and the effect of a vacuum on a peep
Demo: how a pressure cooker works
Set up a distillation apparatus and complete a distillation of sea water
Use an electrical conductivity apparatus to determine the purity of the collected distilled water
Determine the mass accountability of this distillation and other example distillations
Complete an error analysis to explain mass accountability
Use a Vernier temp. probe and a CBL to collect data during the distillation and download data to a computer to prepare a portion of a heating, cooling curve
Explain the energy changes on the above heating,cooling curve
Demo lab activity: boiling by cooling. Students will determine the pressure inside the flask at each boiling episode using their graphs
Demo: the soda geyser and elephant toothpaste
Peer check and tutor with module 7 practice test
Lab reports
Performance based grading of graphing exercises
Practice tests
Tests