Principles of Environmental Science
Principles of Environmental Science
8th Edition
ISBN: 9780078036071
Author: William P Cunningham Prof., Mary Ann Cunningham Professor
Publisher: McGraw-Hill Education
Question
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Chapter 12, Problem 1CYE
To determine

The grams of gold in 5 billion phones, if one cell phone contains 0.03 g of gold.

Expert Solution & Answer
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Answer to Problem 1CYE

The amount of gold present in 5,000,000,000 cell phones is 150,000,000 g.

Explanation of Solution

The symbol of gold is Au. A cell phone is made up of 0.03 g of gold. There are 5,000,000,000 phones that are made up of gold.

One cell phone has 0.03 g of gold.

There are 5,000,000,000 cell phones and each have 0.03 g of gold.

1Cellphone=0.03gofgold5,000,000,000cellphones=5,000,000,000×0.03gofgold=150,000,000gofgold

Conclusion:

Hence, the amount of gold present in 5,000,000,000 cell phones is 150,000,000 g.

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