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What is recorded as the final temperature (in C) on a constant pressure calorimeter if 12.718 g of sodium sulfate is dissolved in 48.916 mL of water originally at 24.373°C? Answer: Check x

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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What is recorded as the final temperature (in C) on a constant pressure calorimeter if 12.718 g of sodium sulfate is dissolved in 48.916 ml of water
originally at 24.373°C?
Answer:
Check

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4. 56.0 ml of 1.5 M HCl is mixed with 68.5 mL of 1.33 M NAOH in a calorimeter cup (C= 55.35 1/°C) If the initial temperatures of both solutions before mixing is 21.78°C determine the final temperature of the combined solutions after the reaction takes place. Step 1: Determine the moles of HCl and NaOH present and clearly identify the limiting reactant. Show all calculations. Step 2: Use the limiting reactant and AH= -57.62 kJ/mole to determine the heat released by the reaction. Show all calculations. Step 3: Use the heat you determined in Step 2 to calculate the temperature change using the equation: gon = m.olution X Clution X AT Ceat x AT. Assume the solution has the same density and specific heat as pure water. Show all calculations. Step 4: Assuming the initial temperature of the two solutions is 21.78 °C, determine the final temperature of the total solution. Show all calculations.
Question 1 50.0 mL of 2.2 M HCI is combined with 50.0 mL of 2.0 M NAOH in a coffee-cup calorimeter. Calculate the moles of HCI added to the calorimeter. Question 2