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A chemist carefully measures the amount of heat needed to raise the temperature of a 749.0 mg sample of a pure substance from -3.1 °C to 19.9 °C. The experiment shows that 42.0 J of heat are needed. What can the chemist report for the specific heat capacity of the substance? Round your answer to 3 significant digits. 1 -1

A chemist carefully measures the amount of heat needed to raise the temperature of a 749.0 mg sample of a pure substance from -3.1 °C to 19.9 °C. The experiment shows that 42.0 J of heat are needed. What can the chemist report for the specific heat capacity of the substance? Round your answer to 3 significant digits. 1 -1

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
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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A chemist carefully measures the amount of heat needed to raise the temperature of a 749.0 mg sample of a pure substance from -3.1 °C to 19.9 °C. The experiment shows that 42.0 J of heat are needed. What can the chemist report for the specific heat capacity of the substance? Round your answer to 3 significant digits. 1 - 1 · K x10 ?
Transcribed Image Text:A chemist carefully measures the amount of heat needed to raise the temperature of a 749.0 mg sample of a pure substance from -3.1 °C to 19.9 °C. The experiment shows that 42.0 J of heat are needed. What can the chemist report for the specific heat capacity of the substance? Round your answer to 3 significant digits. 1 - 1 · K x10 ?
Expert Solution
Step 1

Given:

The mass of the sample = 749.0 mg

The initial temperature of the sample = -3.1 oC

The final temperature of the sample = 19.9 oC

The amount of heat absorbed by the sample = 42.0 J

We have to calculate the specific heat capacity of the substance.

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