Objectives: Use stoichiometry to predict how much product will be produced in the dehydration of a crystal.
Announcements: Homework due tomorrow
Warm-up: Get a crucible and cover, make sure they are clean. Find and record the mass. Goggles on.
Hydrates Lab (Part 1)
Mass out between 4.5-5.5 grams of hydrated copper (II) sulfate crystals. Measure and record the exact mass. Set up to dehydrate & begin. Predict the mass I show me your work. Cool and mass your product.
Homework: Balance & Decode
Wednesday, January 30, 2013
Mon., Feb. 4, 2013
Objectives: Identify type, predict products &
balance
Announcements: Lab tomorrow (be prepared)
Warm-up: Name the following common acids...
Hydrates Lab (Part 1):
Substances that "hold" water as part of their
crystal structure are called hydrates. You will
dehydrate copper (II) sulfate, pentahydrate and predict the final weight while heating.
Decoding Practice Problem:
Hydrogen peroxide decomposes readily into oxygen gas and water. This process is made much more rapid with the addition of a little potassium iodide.
Predicting products of chemical reactions
Homework: Balance & Decode
balance
Announcements: Lab tomorrow (be prepared)
Warm-up: Name the following common acids...
Substances that "hold" water as part of their
crystal structure are called hydrates. You will
dehydrate copper (II) sulfate, pentahydrate and predict the final weight while heating.
Decoding Practice Problem:
Hydrogen peroxide decomposes readily into oxygen gas and water. This process is made much more rapid with the addition of a little potassium iodide.
Predicting products of chemical reactions
Homework: Balance & Decode
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