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Answer question number 2

Answer question number 2

Biochemistry
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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Answer question number 2
of Reaction and Hess's Law Reaction and Hess's Law - Page 2 Consider the following three reactions: Mg(s) + 2HCI(aq) MgCl,(aq) + H,(g) Equation A MgO(s) + 2HCI(aq) MgCl,(aq) + H20(1) Equation B H,(g) + ½0,(g) - H,0(1) It is possible to express the combustion of magnesium (Equation 1) as an algebraic sum of Equation C
Transcribed Image Text:of Reaction and Hess's Law Reaction and Hess's Law - Page 2 Consider the following three reactions: Mg(s) + 2HCI(aq) MgCl,(aq) + H,(g) Equation A MgO(s) + 2HCI(aq) MgCl,(aq) + H20(1) Equation B H,(g) + ½0,(g) - H,0(1) It is possible to express the combustion of magnesium (Equation 1) as an algebraic sum of Equation C
2. Use Hess's Law to calculate the heat of reaction for Equațion 1. Hint: See your answer in PreLab Question #2. Show Calculation The hinti 3. The heat of reaction for Equation 1 is equal to the heat of formation of solid magnesium oxide. a. Look up the heat of formation of magnesium oxide in your textbook or a chemical reference source. b. Calculate the percent error in your experimental determination of the heat of reaction for Equation 1. Show Calculation
Transcribed Image Text:2. Use Hess's Law to calculate the heat of reaction for Equațion 1. Hint: See your answer in PreLab Question #2. Show Calculation The hinti 3. The heat of reaction for Equation 1 is equal to the heat of formation of solid magnesium oxide. a. Look up the heat of formation of magnesium oxide in your textbook or a chemical reference source. b. Calculate the percent error in your experimental determination of the heat of reaction for Equation 1. Show Calculation
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