Answer
A
Work Step by Step
a) $(20.8\ mL\times 6.00\ M)/1000\ mL=0.125\ M$
b) $(50.0\ mL\times 3.00\ M)/1000\ mL=0.15\ M$
Method b doesn't produce a $0.125\ M$ solution.
Chemistry and Chemical Reactivity (9th Edition)
by Kotz, John C.; Treichel, Paul M.; Townsend, John R.; Treichel, David A.
Published by
Cengage Learning
ISBN 10:
1133949649
ISBN 13:
978-1-13394-964-0
Chapter 4 Stoichiometry: Quantitative Information about Chemical Reactions - Study Questions - Page 179d: 51
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