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

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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 questions 4, 5, &6
3.
7.
2. Why is water an excellent material to use in the calorimeter?
3.
4.
5.
2880 J
How much heat is required to raise the temperature of 54.5g of PCl3 from 18.6°C to
Cp PC13= 0.874 J/g °C
79.1°C?
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
155,000 J
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 (1) 4.184J/g °C
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
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
A piece of unknown metal with a mass of 5.19g is heated to 100.00°C and dropped
into 10.0mL of water at 22.00°C. The final temperature of the system is 23.83°C. What
is the specific heat of the metal?
0.193 J/g °C
A piece of an unknown metal with a mass of 23.8g is heated to 100.0°C and dropped
in 50.0g of water at 24.0°C. The final temperature of the system is 32.50°C. What is the
specific heat of the metal?
1.1 J/g °C
Transcribed Image Text:3. 7. 2. Why is water an excellent material to use in the calorimeter? 3. 4. 5. 2880 J How much heat is required to raise the temperature of 54.5g of PCl3 from 18.6°C to Cp PC13= 0.874 J/g °C 79.1°C? 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 155,000 J 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 (1) 4.184J/g °C 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 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 A piece of unknown metal with a mass of 5.19g is heated to 100.00°C and dropped into 10.0mL of water at 22.00°C. The final temperature of the system is 23.83°C. What is the specific heat of the metal? 0.193 J/g °C A piece of an unknown metal with a mass of 23.8g is heated to 100.0°C and dropped in 50.0g of water at 24.0°C. The final temperature of the system is 32.50°C. What is the specific heat of the metal? 1.1 J/g °C
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