Thursday, October 21, 2010

% Composition of Bubble Gum


Yesterday in class we we began by briefly reviewing for our quiz which was pushed back until today. After our review of unit conversions and molar mass problems we began the Percent Composition of Bubble Gum Lab.

In this lab the purpose was to find out the percent sugar in bubble gum and write an empirical formula for bubble gum. The notes on empirical formulas will be displayed in a later post.

Here is the procedure for this lab:
1. Obtain a piece of bubble gum and its wrapper. Record the mass of the gum and its wrapper.

2. Unwrap the gum (save the wrapper). Chew the bubble gum. While Chewing the gum record the mass of the wrapper.

3. When the gum has lost its sweetness, place the chewed gum in the wrapper and record the mass of the gum and its wrapper.

Note: In this lab our class used Double Bubble chewing gum because as Mr. Lieberman said, "Double Bubble is the worlds greatest gum, for 15 seconds."

The calculations for this lab are due on Friday.

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