Answer
B
Work Step by Step
a) $(30.0\ mL\times 1.50\ M)/300.\ mL=0.150\ M$
b) $(250.0\ mL\times 0.600\ M)/300.\ mL=0.500\ M$
Method a doesn't produce a $0.500\ M$ 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: 52
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