Enthalpy: Heat of Neutralization relaboratory Questions ame Laboratory Section the 8. 1. The temperature of a 15.0 g sample of a metal (specific heat 0.040 J/g-°C) is raised by 18.2°C. How much heat (in J) has been absorbed by the metal? 2. A calorimeter and its contents have a heat capacity of 70 J/°C. A reaction occurs in this calorimeter at atmospheric pressure. The temperature of the system rises 10.5°C when one mole of product is formed. Calculate the heat change for this reaction. 3. If 100 g of a solution (specific heat of 0.32 J/g-°C) undergoes a reaction in which 74.84I of heat is released, what is the temperature change (AT) of this solution? Does the tem- perature of the solution increase or decrease? 4. 30.0 g of a substance (molar mass: 46 g/mol) required 262 J of heat to raise its temperature from 32.0 to 37.4°C. What is the specific heat per gram and per mole of this substance? (continued on next page) 125

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Enthalpy: Heat of Neutralization
relaboratory Questions
ame
Laboratory Section
the
8.
1. The temperature of a 15.0 g sample of a metal (specific heat 0.040 J/g-°C) is raised by
18.2°C. How much heat (in J) has been absorbed by the metal?
2. A calorimeter and its contents have a heat capacity of 70 J/°C. A reaction occurs in this
calorimeter at atmospheric pressure. The temperature of the system rises 10.5°C when one
mole of product is formed. Calculate the heat change for this reaction.
3. If 100 g of a solution (specific heat of 0.32 J/g-°C) undergoes a reaction in which 74.84I
of heat is released, what is the temperature change (AT) of this solution? Does the tem-
perature of the solution increase or decrease?
4. 30.0 g of a substance (molar mass: 46 g/mol) required 262 J of heat to raise its temperature
from 32.0 to 37.4°C. What is the specific heat per gram and per mole of this substance?
(continued on next page)
125
Transcribed Image Text:Enthalpy: Heat of Neutralization relaboratory Questions ame Laboratory Section the 8. 1. The temperature of a 15.0 g sample of a metal (specific heat 0.040 J/g-°C) is raised by 18.2°C. How much heat (in J) has been absorbed by the metal? 2. A calorimeter and its contents have a heat capacity of 70 J/°C. A reaction occurs in this calorimeter at atmospheric pressure. The temperature of the system rises 10.5°C when one mole of product is formed. Calculate the heat change for this reaction. 3. If 100 g of a solution (specific heat of 0.32 J/g-°C) undergoes a reaction in which 74.84I of heat is released, what is the temperature change (AT) of this solution? Does the tem- perature of the solution increase or decrease? 4. 30.0 g of a substance (molar mass: 46 g/mol) required 262 J of heat to raise its temperature from 32.0 to 37.4°C. What is the specific heat per gram and per mole of this substance? (continued on next page) 125
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