A 21.0 g sample of pure iron at 85 °C is dropped into 76 g of water at 20. °C. What is the final temperature of the water-iron mixture? The specific heat of water is 4.184 J/g °C. The specific heat of iron is 0.45 J/g °C. Final temperature = °℃ Submit Answer Retry Entire Group 8 more group attempts remaining

A 21.0 g sample of pure iron at 85 °C is dropped into 76 g of water at 20. °C. What is the final temperature of the water-iron mixture? The specific heat of water is 4.184 J/g °C. The specific heat of iron is 0.45 J/g °C. Final temperature = °℃ Submit Answer Retry Entire Group 8 more group attempts remaining

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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During lab you are given two solutions to use for a coffee-cup calorimetry experiment. The instructor directs you to obtain one hundred milliliters of each solution to use in your experiment. The two solutions are 0.300 M AgNO3 and 0.300 M HCl. Combine the two solutions in a coffee-cup calorimeter and measure the temperature change. You determine the initial temperature is 21.80 �C and the final temperature is 23.20 �C. Assuming the density and specific heat of the resulting solution is 1.00 g/mL and 4.18 J/g ? �C, respectfully, what is the ?H�rxn? Question 20 options: +39.0 kJ/mol +1.17 kJ/mol -39.0 kJ/mol -1.17 kJ/mol
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Please typed answer as I can't understand handwriting well