-Calorimetry Questions 1. A 24.6 g sample of nickel is heated to 110.0 °C and then placed in a coffee-cup calorimeter containing 125 g of water at a temperature of 23.00 °C. After the nickel cools, the final temperature of the metal and water is 24.83 °C. Assuming that no heat has escaped to the surroundings or has been absorbed by the calorimeter, calculate the specific heat of nickel. 2. When solutions of an acid and a base are mixed, heat is released. Using a coffee-cup calorimeter, 100.0 mL of 0.100 mol/L HCI are mixed with 100.0 mL 0.100 mol/L NaOH solution. The initial temperature of the solutions were 22.6 °C, and the temperature after mixing was 32.4 °C. Calculate the molar enthalpy of neutralization for the reaction: HCI (aq) + NaOH (aq) → NaCI (aq) + H,0 (1)
-Calorimetry Questions 1. A 24.6 g sample of nickel is heated to 110.0 °C and then placed in a coffee-cup calorimeter containing 125 g of water at a temperature of 23.00 °C. After the nickel cools, the final temperature of the metal and water is 24.83 °C. Assuming that no heat has escaped to the surroundings or has been absorbed by the calorimeter, calculate the specific heat of nickel. 2. When solutions of an acid and a base are mixed, heat is released. Using a coffee-cup calorimeter, 100.0 mL of 0.100 mol/L HCI are mixed with 100.0 mL 0.100 mol/L NaOH solution. The initial temperature of the solutions were 22.6 °C, and the temperature after mixing was 32.4 °C. Calculate the molar enthalpy of neutralization for the reaction: HCI (aq) + NaOH (aq) → NaCI (aq) + H,0 (1)
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter7: Chemical Energy
Section: Chapter Questions
Problem 109AE: A sample of nickel is heated to 99.8C and placed in a coffee-cup calorimeter containing 150.0 g...
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