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DAVID LICATA's picture

Mass of a Reaction Product

Wed, 10/29/2014 - 21:41 -- DAVID LICATA
Sodium carbonate reacts with hydrochloric acid producing bubbles

Students combine sodium carbonate and hydrochloric acid generating carbon dioxide gas which is allowed to escape. They measure the actual yield of carbon dioxide produced (missing mass), calculate the theoretical yield using stoichiometry, and then the percent yield. Students understand that 100% yield is the most appropriate answer (based on the Law of Conservation of Mass), so after considering the meaning of significant figures and the uncertainty of their measurements they are asked to decide if they did (or did not) get an answer that might indicate the validity of the Law.

Time required: 

One 50-minute period to perform the lab. One additional period to perform the calculations (optional). Often more able students will have time to begin some calculations at the end of the lab experiment.

Shelly Belleau's picture

Density "POGIL-Like" Activity

Mon, 07/14/2014 - 17:43 -- Shelly Belleau

Although many students have been exposed to the concept of density before reaching my Chemistry class, I always start the year with this POGIL-like activity.

Time required: 

Approximately one hour including the debrief (I recommend holding a whole-class discussion for the summarizing questions that follow the What is density? activity and a selection of mathematical computation problems from the How can you calculate density? activity.)

Deanna Cullen's picture

Ice Cream in a Bag

Mon, 04/28/2014 - 13:10 -- Deanna Cullen
ice cream ingredients

A quick google search will allow you to find many laboratory activities for making ice cream in chemistry class. Some of the links provide questions to incorporate into the activity. I have used several over the years and will share my modified version here.

Time required: 

45 minutes

Michael Morgan's picture

Coordination Compounds: Independent Study

Thu, 03/20/2014 - 13:55 -- Michael Morgan

An independent study on the chemistry topic of coordination compounds and complex ions suitable for AP Chemistry and first-year college chemistry students is presented. This student activity accompanies the article "A guided group inquiry lesson on coordination compounds and complex ions" and is suitable for use by the student to guide their activity.

Time required: 

5 class periods for entire independent study project

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