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Chemistry
moles

moles

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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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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