An unknown mass of each of the following substances, initially at 21.0 ∘C, absorbs 1920 J of heat. The final temperature is recorded as indicated. Find the mass of each substance. Express your answer using two significant figures. a)Pyrex glass (Tf=55.3 ∘C) b)sand (Tf=62.1 ∘C) c)ethanol (Tf=44.4 ∘C) d)water (Tf=32.4 ∘C)
An unknown mass of each of the following substances, initially at 21.0 ∘C, absorbs 1920 J of heat. The final temperature is recorded as indicated. Find the mass of each substance. Express your answer using two significant figures. a)Pyrex glass (Tf=55.3 ∘C) b)sand (Tf=62.1 ∘C) c)ethanol (Tf=44.4 ∘C) d)water (Tf=32.4 ∘C)
Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter5: Thermochemistry
Section: Chapter Questions
Problem 5.28QE
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An unknown mass of each of the following substances, initially at 21.0 ∘C, absorbs 1920 J of heat. The final temperature is recorded as indicated. Find the mass of each substance.
Express your answer using two significant figures.
a)Pyrex glass (Tf=55.3 ∘C)
b)sand (Tf=62.1 ∘C)
c)ethanol (Tf=44.4 ∘C)
d)water (Tf=32.4 ∘C)
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