To determine whether a shiny gold-colored rock is actually gold, a chemistry student decides to measure its heat capacity. She first weighs the rock and finds it has a mass of 3.2 g. She then finds that upon absorption of 56.4 J of heat, the temperature of the rock rises from 25 °C to 52 °C. Substance Elements Lead Gold Silver Copper Iron Specific heat capacity, Cs (J/(g. °C))* 0.128 0.128 0.235 0.385 0.449 0.903 Aluminum Compounds Ethanol Water Materials Glass (Pyrex) 0.75 Granite 0.79 Sand 0.84 * At 298 K. 2.42 4.18 Find the specific heat capacity of the substance composing the rock. Express the specific heat in joules per gram-Celsius to two significant figures. C₁ = Submit Part B ΠΙ ΑΣΦΑ Submit Request Answer Provide Feedback Determine whether the value is consistent with the rock being pure gold by referring to the table. ? O Yes, the value is consistent with the rock being pure gold. O No, the value is inconsistent with the rock being pure gold. J/g. °C Request Answer
To determine whether a shiny gold-colored rock is actually gold, a chemistry student decides to measure its heat capacity. She first weighs the rock and finds it has a mass of 3.2 g. She then finds that upon absorption of 56.4 J of heat, the temperature of the rock rises from 25 °C to 52 °C. Substance Elements Lead Gold Silver Copper Iron Specific heat capacity, Cs (J/(g. °C))* 0.128 0.128 0.235 0.385 0.449 0.903 Aluminum Compounds Ethanol Water Materials Glass (Pyrex) 0.75 Granite 0.79 Sand 0.84 * At 298 K. 2.42 4.18 Find the specific heat capacity of the substance composing the rock. Express the specific heat in joules per gram-Celsius to two significant figures. C₁ = Submit Part B ΠΙ ΑΣΦΑ Submit Request Answer Provide Feedback Determine whether the value is consistent with the rock being pure gold by referring to the table. ? O Yes, the value is consistent with the rock being pure gold. O No, the value is inconsistent with the rock being pure gold. J/g. °C Request Answer
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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
![To determine whether a shiny gold-colored rock is actually gold, a
chemistry student decides to measure its heat capacity. She first
weighs the rock and finds it has a mass of 3.2 g. She then finds
that upon absorption of 56.4 J of heat, the temperature of the rock
rises from 25 °C to 52 °C.
Substance
Elements
Lead
Gold
Silver
Copper
Iron
Aluminum
Compounds
Ethanol
Water
Materials
Glass (Pyrex)
Granite
Sand
* At 298 K.
Specific heat
capacity, Cs
(J/(g. °C))*
0.128
0.128
0.235
0.385
0.449
0.903
2.42
4.18
0.75
0.79
0.84
Find the specific heat capacity of the substance composing the rock.
Express the specific heat in joules per gram-Celsius to two significant figures.
Cs=
Submit
Part B
ΕΠΙ ΑΣΦ
Submit
Request Answer
Determine whether the value is consistent with the rock being pure gold by referring to the table.
Provide Feedback
?
Yes, the value is consistent with the rock being pure gold.
O No, the value is inconsistent with the rock being pure gold.
J/g °C
Request Answer](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F77ff0dc1-7282-4fa0-94cd-a91857c24dd6%2F2e96ac4c-dc0b-4870-8a16-93bf51b97771%2Ff0dt5yf_processed.png&w=3840&q=75)
Transcribed Image Text:To determine whether a shiny gold-colored rock is actually gold, a
chemistry student decides to measure its heat capacity. She first
weighs the rock and finds it has a mass of 3.2 g. She then finds
that upon absorption of 56.4 J of heat, the temperature of the rock
rises from 25 °C to 52 °C.
Substance
Elements
Lead
Gold
Silver
Copper
Iron
Aluminum
Compounds
Ethanol
Water
Materials
Glass (Pyrex)
Granite
Sand
* At 298 K.
Specific heat
capacity, Cs
(J/(g. °C))*
0.128
0.128
0.235
0.385
0.449
0.903
2.42
4.18
0.75
0.79
0.84
Find the specific heat capacity of the substance composing the rock.
Express the specific heat in joules per gram-Celsius to two significant figures.
Cs=
Submit
Part B
ΕΠΙ ΑΣΦ
Submit
Request Answer
Determine whether the value is consistent with the rock being pure gold by referring to the table.
Provide Feedback
?
Yes, the value is consistent with the rock being pure gold.
O No, the value is inconsistent with the rock being pure gold.
J/g °C
Request Answer
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