Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter16: Acids And Bases
Section: Chapter Questions
Problem 17QAP: . What does it mean to say that an acid is strong in aqueous solution? What does this reveal about...
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Please help! the second number of moles is supposed to be 0.02510 moles

E. One important use of titration experiments is that they can be used to determine the exact.
concentration of solutions. The concentration of the NaOH solution prepared in part I cannot be
accurately calculated from molarity and dilution used to make up the solution. These numbers are
not that well known, and NaOH contains impurities. However, the acids that were titrated are
reasonably pure and accurately measured; therefore, the concentration of the NaOH solution can
be calculated from the titration data.
Calculate the concentration of your NaOH solution from each set of titration data (excluding that
with methyl orange), then determine an average value for [OH-] in that solution. The definitions
on the following page may be helpful in making these calculations. Show your calculation for
titration #2 in the space below.
# moles
# liters
# moles
H+ in KHP
# moles
Titration
KHP
OH- added
OH- added
[OH-]
0.002699
.00.2510
1
0.002099
Average
メメ下
2.
Transcribed Image Text:E. One important use of titration experiments is that they can be used to determine the exact. concentration of solutions. The concentration of the NaOH solution prepared in part I cannot be accurately calculated from molarity and dilution used to make up the solution. These numbers are not that well known, and NaOH contains impurities. However, the acids that were titrated are reasonably pure and accurately measured; therefore, the concentration of the NaOH solution can be calculated from the titration data. Calculate the concentration of your NaOH solution from each set of titration data (excluding that with methyl orange), then determine an average value for [OH-] in that solution. The definitions on the following page may be helpful in making these calculations. Show your calculation for titration #2 in the space below. # moles # liters # moles H+ in KHP # moles Titration KHP OH- added OH- added [OH-] 0.002699 .00.2510 1 0.002099 Average メメ下 2.
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