18. Answer the following questions using the given equation and AH. (d) Adding so 6 CO2(g) + 6 H20 (1) → C,H1206(aq) + 6 02(g) AH = +678 kcal/mol (a) Is heat absorbed or released? Chept (b) Are the reactants or products lower in energy? Mult Cho ach) 21. (c) Is the reaction exothermic or endothermic? volume and temperetur somple of ga (d) Which bonds are stronger, those in the reactants or those in the products? (c) Gay-L

18. Answer the following questions using the given equation and AH. (d) Adding so 6 CO2(g) + 6 H20 (1) → C,H1206(aq) + 6 02(g) AH = +678 kcal/mol (a) Is heat absorbed or released? Chept (b) Are the reactants or products lower in energy? Mult Cho ach) 21. (c) Is the reaction exothermic or endothermic? volume and temperetur somple of ga (d) Which bonds are stronger, those in the reactants or those in the products? (c) Gay-L

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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Question 2 Use the following information to answer the question. A technician prepares 500 mL of a 0.100 mol/L solution of acetic (ethanoic) acid by diluting a concentrated solution of acetic acid with water. The equilibrium equation that represents the reaction that occurs when acetic acid and water react is shown below. CH,COOH(aq) + H₂O(1) CH,CO0¹ (aq) + H₂O*(aq) a. For the prepared acetic acid solution, calculate the concentration of H3O*(aq) and the pH. CH₂COOH + H₂O. → CH₂COO H30 V= 0.5L C0.100m0111 n=cv-> (0-100) (0.5) => 0.05 mol = =0.0smol. neo 05 nul Show Transcribed Text Use the following additional information to answer the next part of the question. A technician uses the 500 mL of 0.100 mol/L acetic acid to prepare an acetic acid-sodium acetate buffer solution. She does this by adding 0.100 mol/L sodium acetate to the 0.100 mol/L acetic acid until the required pH is reached. b. Identify the shift in equilibrium that will occur when sodium acetate is added to the…