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: 14

Answer

Sulfur is the limiting reactant. $67.5\ g\ S_2Cl_2$ $35.54\ g\ Cl_2$

Work Step by Step

Number of moles of the reactants: Sulfur: $32.0\ g\div 256.52\ g/mol=0.125\ mol$ Chlorine: $71.0\ g\div 70.91\ g/mol=1.00\ mol$ Ratio: $1.00/0.125=8.00$ Sulfur is the limiting reactant. From stoichiometry: $0.125\ mol\times 4_{S_2Cl_2}/1_{S_8} \times 135.04\ g/mol\ S_2Cl_2=67.5\ g\ S_2Cl_2$ Chlorine reacted: $0.125\ mol\times 4_{Cl_2}/1_{S_8} \times 70.91\ g/mol\ Cl_2=35.46\ g\ Cl_2$ Remaining: $71.0-35.46=35.54\ g$
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