Calculate the amount of heat needed to boil 133.g of ethanol ( CH3CH2OH ), beginning from a temperature of −45.7°C . Be sure your answer has a unit symbol and the correct number of significant digits.

Calculate the amount of heat needed to boil 133.g of ethanol ( CH3CH2OH ), beginning from a temperature of −45.7°C . Be sure your answer has a unit symbol and the correct number of significant digits.

World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Chapter10: Energy

Section: Chapter Questions

Problem 8A

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Question

Calculate the amount of heat needed to boil

133.g

of ethanol (

CH3CH2OH

), beginning from a temperature of

−45.7°C

. Be sure your answer has a unit symbol and the correct number of significant digits.

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Step 2: The heat required to change temperature of ethanol:

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Step 3: The heat needed to boil ethanol:

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