Chemistry Manual 2012-2013 - Edison State College
Chemistry Manual 2012-2013 - Edison State College
Chemistry Manual 2012-2013 - Edison State College
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Blake Schmidt - Unit 7 Page 35<br />
U7 EP1<br />
Unit 7: Example Problems 1<br />
Relative Mass<br />
The following items are sold regularly by the dozen instead of individually:<br />
eggs, bagels, munchkins (donut holes), and chicken wings.<br />
1.<br />
Why are these items sold in this manner?<br />
A student determined the mass of a dozen of each of these items.<br />
Eggs = 1.5 pounds<br />
Bagels = 3.0 pounds<br />
Munchkins = 0.75 pounds<br />
Wings = 2.25 pounds<br />
2.<br />
3.<br />
Calculate the average mass of ONE of each item.<br />
Place the correct number of munchkins in the empty balance pan.<br />
1.0# 0.75#<br />
4.<br />
Compare how you "counted" particles in the pressure vs. number of particles lab in Unit 3 with<br />
how you "counted" particles in the relative mass lab. What assumptions did you make in each lab?<br />
What reasoning did you use to reach these assumptions?
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