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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Please help with question 3
Transcribed Image Text:8.
9.
Chem 105-Online
Pre-lab Questions:
(Answers in proper number of significant figures
are given to numerical questions to aid you.)
What physical properties, other than specific heat, could you use to help you identify
the sample used in this experiment?
1.
2. Why is water an excellent material to use in the calorimeter?
5.
2880 J
3. How much heat is required to raise the temperature of 54.5g of PC13 from 18.6°C to
Cp PC13= 0.874 J/g °C
79.1°C?
4.
145 J
How much heat is required to raise the temperature of 8.787g of CCl4 from 37.1°C to
56.4°C? Cp CCl4 = 0.856 J/g °C
How much heat is required to raise the temperature of 7.90 x 102g of water from
38.4°C to 85.4°C? Cp H₂O (I) = 4.184J/g °C
155,000 J
6.
If a piece of aluminum with a mass of 2.39g and a temperature of 100.0°C is dropped
into 10.0cm³ of water at 14.1°C, what will be the final temperature of the system?
(Use 1.00g/cm³as the density of water.)
Cp Al=0.900J/g °C
18.3°C
7.
If a piece of cadmium (Cd) with a mass of 75.2g and a temperature of 100.0°C is
dropped into 25.0g of water at 23.0°C, what will be the final temperature of the
system? Cp Cd = 0.230J/g °C
34.0°C
into 10.0mL of water at 22.00°C. The final temperature of the system is 23.83°C. What
A piece of unknown metal with a mass of 5.19g is heated to 100.00°C and dropped
0.193 J/g °C
is the specific heat of the metal?
in 50.0g of water at 24.0°C. The final temperature of the system is 32.50°C. What is the
A piece of an unknown metal with a mass of 23.8g is heated to 100.0°C and dropped
specific heat of the metal?
Ch
MA
Th
Te:
ME
PRO
1. F
2. N
3. F
+
r
4. F
5.
6.
7.
8.
9.
10.
Re
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