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Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692

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BuyFindarrow_forward

Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692
Chapter 10, Problem 22E
Textbook Problem
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Cost of Power

Suppose your monthly electric bill is $85.00 at a rate of 15 cents per kilowatt-hour. What would you pay if you converted to solar energy at a rate of 21 cents per kilowatt-hour?

Interpretation Introduction

Interpretation:

The monthly cost of electricity using solar energy is to be determined.

Concept Introduction:

If the cost of one unit of energy and the monthly cost is known, then the energy spent per month can be calculated by dividing the monthly cost with the cost of one unit of energy.

If the energy spent per month and the cost of one unit of energy is known, then the monthly cost can be calculated by multiplying the energy spent with the cost of one unit of energy.

Explanation of Solution

Convert $85.00 to kilowatt-hour by using the conversion factor 1 kilowatt-hour $0.15 as follows:

Electrical energy used per month =($85.00×1 kilowatt-hour $0.15)=566.67 kilowatt-hour

The relation between cent and dollar is given as:

1 cent = $0.01 

Now, use the above relation to convert 21 cent to dollars as follows:

21 cent =(21 cent×$0

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Chapter 10 Solutions

Chemistry In Focus
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