While cleaning your attic, you found your old rock collection. If 83.58% of the rocks have a mass of 4.7g, and the rest a mass of 2.8g, what is the average mass of your rock collection? For this problem you will need to use a process called a "weighted average." Another way to solve it is to assume you have 100 rocks.

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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13. While cleaning your attic, you found your old rock collection. If 83.58% of the rocks have a
mass of 4.7g, and the rest a mass of 2.8g, what is the average mass of your rock collection?
For this problem you will need to use a process called a "weighted average." Another way to
solve it is to assume you have 100 rocks.
Transcribed Image Text:13. While cleaning your attic, you found your old rock collection. If 83.58% of the rocks have a mass of 4.7g, and the rest a mass of 2.8g, what is the average mass of your rock collection? For this problem you will need to use a process called a "weighted average." Another way to solve it is to assume you have 100 rocks.
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