Chemistry In Focus
7th Edition
ISBN: 9781337399692
Author: Tro, Nivaldo J.
Publisher: Cengage Learning,
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Question
Chapter 9, Problem 31E
Interpretation Introduction
Interpretation:
Each of the given conversions are to be performed.
Concept introduction:
Unit conversion is a multiple-step process used to convert the unit of measurement of a given quantity. It is determined by multiplication with a conversion factor.
A fraction in which the numerator and the denominator are the same quantities but are determined in different units is known as a conversion factor.
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Students have asked these similar questions
A person uses 494.9 kcal of energy to run a race.
Convert the energy used for the race to the following energy units:
Use the conversion factor: 1 cal = 4.184 J
Hints: Pay careful attention to significant digits and don't use scientific notation
494.9
Calories
494900
calories
2071360
× Joules
2071.4
× Kilojoules
a 0.2500g sample of a pretzel is burned . The heat it gives off is used to heat 50.00g of water from 18.0 degrees Celcius to 42 degrees C. What is the caloric value of the pretzel in kcal/g?
A person uses 411.3 kcal of energy to run a race. Convert the energy used for the race to the following energy units:
1kcal=4.184kJ
(provide an answer in 4 significant figures)
calories:
Joules:
Chapter 9 Solutions
Chemistry In Focus
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