QUESTION 11The thermite reaction, in which aluminum reduces iron(IIl) oxide to elemental iron, has been used by railroad repair crews to weld railstogether.2As) + Fez03(s)What mass of iron is formed when 725 k) of heat are released? (Molar mass of Fe 55.845 g/mol)-2Fe(s) + A@203(s) AH =-850 k]47g65g95g112g125gQUESTION 12MacBook Air

According to reaction, 850 kJ heat is released when 2mol Fe is formed.Given heat is 725 kJ When 850 kJ, then 2 Mole Fe When 725 kJ, then 2/850*725 = 1.706 Mole Fe Molar mass of Fe = 55.845 g/mol Mass of Fe formed = 1.706*55.845 = 95.26≈95 gm So, 95 gm option c is correct.

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QUESTION 11 The thermite reaction, in which aluminum reduces iron(1II) oxide to elemental iron, has been used by railroad repair crews to wel raih together. 2AR(s) + FezO3(s)2Fe(s) + A@203(s) AH=-850 k) What mass of iron is formed when 725 kj of heat are released? (Molar mass of Fe 55.845 g/mol) 47g 65 g 95 g 112g 125 g QUESTION 12

QUESTION 11 The thermite reaction, in which aluminum reduces iron(1II) oxide to elemental iron, has been used by railroad repair crews to wel raih together. 2AR(s) + FezO3(s)2Fe(s) + A@203(s) AH=-850 k) What mass of iron is formed when 725 kj of heat are released? (Molar mass of Fe 55.845 g/mol) 47g 65 g 95 g 112g 125 g QUESTION 12

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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