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: Matter and Change
1st Edition
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Chapter15: Energy And Chemical Change
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Problem 75A: Swimming Pool A swimming pool measuring 20.0m12.5m is filled with water to a depth of 3.75m. If the...
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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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