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A student places a piece of copper with a mass of 125.0 grams and initial temperature of 99.00 °C into 100.0 mL of water at 25.00 in a coffee-cup calorimeter. The final temperature of the mixtur 31.37 °C. The specific heat of copper is 0.385 J/g °C and that water is 4.184 J/g °C. What is the heat capacity of the

A student places a piece of copper with a mass of 125.0 grams and initial temperature of 99.00 °C into 100.0 mL of water at 25.00 in a coffee-cup calorimeter. The final temperature of the mixtur 31.37 °C. The specific heat of copper is 0.385 J/g °C and that water is 4.184 J/g °C. What is the heat capacity of the

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A student places a piece of copper with a mass of 125.0 grams and an initial temperature of 99.00 °C into 100.0 mL of water at 25.00 °C in a coffee-cup calorimeter. The final temperature of the mixture is 31.37 °C. The specific heat of copper is 0.385 J/g °C and that of water is 4.184 J/g °C. What is the heat capacity of the calorimeter? Part 1. A student measures an initial temperature of 25.00 °C for a 100.0 gram sample of water in the coffee-cup calorimeter (from When the student adds a 20.0 gram sample of NHI to the water, the final temperature of the solution is 21.83 °C. The solution specific heat is 4.184 J/g °C. What is AHO for the heat of the rxn solution of NHI,I in J/g of NH,I and kJ/mol of NH,I? Part 2 Another student dissolves a 5.25 g sample of solid NaOH in 100.00 g of water at 25.00 °C in the coffee-cup calorimeter The temperature of the mixture rises to 35.56 °C. Calculate the qp in joules and the enthalpy, AH, for the solution process in J/gNaOH and in kJ/mol NaOH. Assume that the specific heat of the solution is the same as that of water. = part 3
Transcribed Image Text:A student places a piece of copper with a mass of 125.0 grams and an initial temperature of 99.00 °C into 100.0 mL of water at 25.00 °C in a coffee-cup calorimeter. The final temperature of the mixture is 31.37 °C. The specific heat of copper is 0.385 J/g °C and that of water is 4.184 J/g °C. What is the heat capacity of the calorimeter? Part 1. A student measures an initial temperature of 25.00 °C for a 100.0 gram sample of water in the coffee-cup calorimeter (from When the student adds a 20.0 gram sample of NHI to the water, the final temperature of the solution is 21.83 °C. The solution specific heat is 4.184 J/g °C. What is AHO for the heat of the rxn solution of NHI,I in J/g of NH,I and kJ/mol of NH,I? Part 2 Another student dissolves a 5.25 g sample of solid NaOH in 100.00 g of water at 25.00 °C in the coffee-cup calorimeter The temperature of the mixture rises to 35.56 °C. Calculate the qp in joules and the enthalpy, AH, for the solution process in J/gNaOH and in kJ/mol NaOH. Assume that the specific heat of the solution is the same as that of water. = part 3
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