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Learning Task 2: 1. Fifty (50) milliliters of water at 60 °C is added to 75 mL of water at 30 °C in a coffee cup calorimeter. The resulting mixture was observed to have a temperature of 40 °C. What is the calorimeter constant? 2. A student transferred 50.0 mL 1.00 M HCI into a coffee-cup calorimeter, which had a temperature of 25.5 °C. He then added 50.0 mL 1.00 M NaOH, which also had a temperature of 25.5 °C, and stirred the mixture quickly. The resulting solution was found to have a temperature of 32.5 °C. The calorimeter constant for the coffee-cup calorimeter used was 15.0 J/ oC. Calculate the heat of reaction. 3. Five (5.00) grams of an unknown compound was dissolved in 75.0 mL of water with an initial temperature of 22.5 °C contained in a coffee-cup calorimeter. Upon the compound's dissolution, the final temperature of the resulting solution was 33.2 °C. The calorimeter used had a calorimeter constant of 200 J/ °C. What is the heat of solution of the compound? Assuming the compound is sodium hydroxide (NAOH), what is the heat of solution in kJ per mol?

Learning Task 2: 1. Fifty (50) milliliters of water at 60 °C is added to 75 mL of water at 30 °C in a coffee cup calorimeter. The resulting mixture was observed to have a temperature of 40 °C. What is the calorimeter constant? 2. A student transferred 50.0 mL 1.00 M HCI into a coffee-cup calorimeter, which had a temperature of 25.5 °C. He then added 50.0 mL 1.00 M NaOH, which also had a temperature of 25.5 °C, and stirred the mixture quickly. The resulting solution was found to have a temperature of 32.5 °C. The calorimeter constant for the coffee-cup calorimeter used was 15.0 J/ oC. Calculate the heat of reaction. 3. Five (5.00) grams of an unknown compound was dissolved in 75.0 mL of water with an initial temperature of 22.5 °C contained in a coffee-cup calorimeter. Upon the compound's dissolution, the final temperature of the resulting solution was 33.2 °C. The calorimeter used had a calorimeter constant of 200 J/ °C. What is the heat of solution of the compound? Assuming the compound is sodium hydroxide (NAOH), what is the heat of solution in kJ per mol?

Chemistry
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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Hi! Can someone answer Learning Task 2, no. 1? Thanks :))
Learning Task 2: 1. Fifty (50) milliliters of water at 60 °C is added to 75 mL of water at 30 °C in a coffee cup calorimeter. The resulting mixture was observed to have a temperature of 40 °C. What is the calorimeter constant? 2. A student transferred 50.0 mL 1.00 M HCI into a coffee-cup calorimeter, which had a temperature of 25.5 °C. He then added 50.0 mL 1.00 M NaOH, which also had a temperature of 25.5 °C, and stirred the mixture quickly. The resulting solution was found to have a temperature of 32.5 °C. The calorimeter constant for the coffee-cup calorimeter used was 15.0 J/ oC. Calculate the heat of reaction. 3. Five (5.00) grams of an unknown compound was dissolved in 75.0 mL of water with an initial temperature of 22.5 °C contained in a coffee-cup calorimeter. Upon the compound's dissolution, the final temperature of the resulting solution was 33.2 °C. The calorimeter used had a calorimeter constant of 200 J/ °C. What is the heat of solution of the compound? Assuming the compound is sodium hydroxide (NaOH), what is the heat of solution in kJ per mol?
Transcribed Image Text:Learning Task 2: 1. Fifty (50) milliliters of water at 60 °C is added to 75 mL of water at 30 °C in a coffee cup calorimeter. The resulting mixture was observed to have a temperature of 40 °C. What is the calorimeter constant? 2. A student transferred 50.0 mL 1.00 M HCI into a coffee-cup calorimeter, which had a temperature of 25.5 °C. He then added 50.0 mL 1.00 M NaOH, which also had a temperature of 25.5 °C, and stirred the mixture quickly. The resulting solution was found to have a temperature of 32.5 °C. The calorimeter constant for the coffee-cup calorimeter used was 15.0 J/ oC. Calculate the heat of reaction. 3. Five (5.00) grams of an unknown compound was dissolved in 75.0 mL of water with an initial temperature of 22.5 °C contained in a coffee-cup calorimeter. Upon the compound's dissolution, the final temperature of the resulting solution was 33.2 °C. The calorimeter used had a calorimeter constant of 200 J/ °C. What is the heat of solution of the compound? Assuming the compound is sodium hydroxide (NaOH), what is the heat of solution in kJ per mol?
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