Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Chapter 4 Stoichiometry: Quantitative Information about Chemical Reactions - Study Questions: 120

Answer

a) The modern catalytic method. b) $55.97\%$

Work Step by Step

a) R1 Reactants: $C_2H_{6}O_2Cl_2Ca, 173.05\ g/mol$ Product: $44.05\ g/mol$ Atom economy: $44.05/173.05\times 100\%=25.46\%$ R2 Reactants: $C_2H_{4}O, 44.05\ g/mol$ Product: $44.05\ g/mol$ Atom economy: $44.05/44.05\times 100\%=100.0\%$ The modern catalytic method. b) Number of moles of ethylene: $867\ g\div 28.045\ g/mol=30.905\ mol$ Mass of oxyde: $30.905\ mol\times 44.05\ g/mol=1361.4\ g$ Percent yield: $762/1361.4\times100\%=55.97\%$
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