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19 Nov 2019
Experiment 14 Advance Study Assignment: Heat Effects and Calorimetry I. A metal sample weighing 71,9 g and at a temperature of 100,0°C was placed in 41.0g of water in a calorimeter at 24.5°C, At equilibrium the temperature of the water and metal was 35.0°C. a. What was ì¨ for the water? (A-ran 1-rinnal) ec b. what was for the metal? oC c. How much beat flowed into the water? joules d. Taking the specific heat of water to be 4.18 J/g C, calculate the specific heat of the metal, using Equation 3. joules/g C What is the approximate molar mass of the metal? (Use Eq. 4.) e. 2. When 2.0 g of NaOH were dissolved in 49,0 g water in a calorimeter at 24.0°C, the temperature of the solution went up to 34.5 °C a. Is this solution reaction exothermic, why? b. Calculate 9no using Equation 1 joules c. Find AH for the reaction as it occurred in the calorimeter (Eq. 5) joules (continued on following page)
Experiment 14 Advance Study Assignment: Heat Effects and Calorimetry I. A metal sample weighing 71,9 g and at a temperature of 100,0°C was placed in 41.0g of water in a calorimeter at 24.5°C, At equilibrium the temperature of the water and metal was 35.0°C. a. What was ì¨ for the water? (A-ran 1-rinnal) ec b. what was for the metal? oC c. How much beat flowed into the water? joules d. Taking the specific heat of water to be 4.18 J/g C, calculate the specific heat of the metal, using Equation 3. joules/g C What is the approximate molar mass of the metal? (Use Eq. 4.) e. 2. When 2.0 g of NaOH were dissolved in 49,0 g water in a calorimeter at 24.0°C, the temperature of the solution went up to 34.5 °C a. Is this solution reaction exothermic, why? b. Calculate 9no using Equation 1 joules c. Find AH for the reaction as it occurred in the calorimeter (Eq. 5) joules (continued on following page)
Jean KeelingLv2
24 Jun 2019