Experiment 14Advance Study Assignment: Heat Effects and Calorimetry1. A metal sample weighing 147.90 g and at a temperature of 99.5°C was placed in 49.73 g of water in a calo-rimeter at 23.0°C. At equilibrium the temperature of the water and metal was 41.8°C.metala. What was At for the water? (At = tanal - tinitial)T左= 99.5%4t<(418を-23.6℃/8.8%18.8 °CH2049.739b. What was At for the metal?TE= 23,0°CAt = (48%-79.5)= 57.72-57.738こHow much heat flowed into the water? (Take the specific heat of the water to be 4.18 J/g°C.)°CC.AH=4,1E) = 1°C e latm99.5x 4.183907.983907.98)joules319.77d. Calculate the specific heat of the metal, using Equation 3.9ニmedt3407-48 J (14746) Cs (-57.7C)O4579joules/g°Ce. What is the approximate molar mass of the metal? (Use Eq. 4.)g/mol2. When 4.98 g of NaOH was dissolved in 49.72 g of water in a calorimeter at 23.7°C, the temperature of thesolution went up to 50.1°C.Is this dissolution reaction exothermic?Why?a.b. Calculate qH,0, using Equation 1.joulesc. Find AH for the reaction as it occurred in the calorimeter (Eq. 5).ΔΗ-joules(continued on following page)

g/mol 2. When 4.98 g of NaOH was dissolved in 49.72 g of water in a calorimeter at 23.7°C, the temperature of the solution went up to 50.1°C. Is this dissolution reaction exothermic? Why? a. b. Calculate qH,0, using Equation 1. joules c. Find AH for the reaction as it occurred in the calorimeter (Eq. 5). AH = joules

g/mol 2. When 4.98 g of NaOH was dissolved in 49.72 g of water in a calorimeter at 23.7°C, the temperature of the solution went up to 50.1°C. Is this dissolution reaction exothermic? Why? a. b. Calculate qH,0, using Equation 1. joules c. Find AH for the reaction as it occurred in the calorimeter (Eq. 5). AH = joules

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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