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Tidewater Community College Enthalpy of the Decomposition of Ammonium Report
Subject
Science
School
Tidewater Community College
Question Description
See the attached file and answer the solve the problems. any question feel free to ask. show your work
Short Answer Enthalpy of the Decomposition of Ammonium Chloride Experiment 1: Find the Calorimeter Constant Lab Results 1. Record the following lab results in the table below. Be sure to include the appropriate unit(s). volume of cold water in the calorimeter 50ml initial temperature of the cold water 21.5c volume of hot water added to the calorimeter 50ml initial temperature of the hot water 60c final temperature in the calorimeter 39.2c Data Analysis 2. Calculate the calorimeter's constant. Show your work. Experiment 2: Determine the Enthalpy of Neutralization of HCl by NH3 Lab Results 1. Record the following lab results in the table below. volume of HCl solution in the calorimeter 25ml volume of NH3 solution added 25ml final temperature in the calorimeter 33.2 Data Analysis 2. Calculate the number of moles of ammonia and hydrochloric acid. Show your work. 3. Calculate the enthalpy of the neutralization reaction between HCl and NH3. Show your work. Experiment 3: Determine the Enthalpy of Dissolution of NH4Cl in Water Lab Results 1. Record the following lab results in the table below. Be sure to include the appropriate unit(s). volume of water added to the calorimeter 25ml initial temperature of the water 21.5c mass of NH4Cl added to the calorimeter 5g final temperature in the calorimeter 9.1c Data Analysis 2. Calculate the enthalpy of the dissolution of NH4Cl in water. The molar mass of NH4Cl is 53.49 g/mol. Show your work. \Conclusions 1. Is the neutralization reaction between ammonia and hydrochloric acid exothermic or endothermic? Explain your answer. 2. Is the dissolution of ammonium chloride into water exothermic or endothermic? Explain your answer. 3. Given the data in the table below, what is the enthalpy of dissolution of KOH? The molar mass of KOH is 56.11 g/mol, the specific heat of solution is 4.184 J/gºC, and the calorimeter constant is 22.45 J/ºC. mass of water added to the calorimeter 75.000 g initial temperature of the water 22.0 ºC mass of KOH added to the calorimeter 1.824 g final temperature in the calorimeter 29.9 ºC ...
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