1- A sample weighing 1 g contains acetic acid (FW = 60 g/mol). The content of acetic acid in the sample was titrated with NaOH (FW = 40 g/mol) 0.05 M and the volume required to reach the equivalence point was 23 mL. Calculate the weight percent of acetic acid in the sample. 2- Calculate the pH of a solution prepared by mixing 50 mL HCI 0.15 M 100 s mL NaOH 0.05 M. 3- In the titration of 20 mL CH;COOH (K, = 1.76 x 10*) 0.4 M with a solution of NaOH 0.4 M, calculate the pH of the resulting solution after addition of: a- 0 mL NaOH b- 10 mL NaOH c- 20 mL NaOH d- 30 mL NAOH
1- A sample weighing 1 g contains acetic acid (FW = 60 g/mol). The content of acetic acid in the sample was titrated with NaOH (FW = 40 g/mol) 0.05 M and the volume required to reach the equivalence point was 23 mL. Calculate the weight percent of acetic acid in the sample. 2- Calculate the pH of a solution prepared by mixing 50 mL HCI 0.15 M 100 s mL NaOH 0.05 M. 3- In the titration of 20 mL CH;COOH (K, = 1.76 x 10*) 0.4 M with a solution of NaOH 0.4 M, calculate the pH of the resulting solution after addition of: a- 0 mL NaOH b- 10 mL NaOH c- 20 mL NaOH d- 30 mL NAOH
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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Transcribed Image Text:1- A sample weighing 1 g contains acetic acid (FW = 60 g/mol).
The content of acetic acid in the sample was titrated with NaOH
(FW = 40 g/mol) 0.05 M and the volume required to reach the
equivalence point was 23 mL.
Calculate the weight percent of acetic acid in the sample.
2- Calculate the pH of a solution prepared by mixing 50 mL HCI
0.15 M 100 o mL NAOH 0.05 M.
3- In the titration of 20 mL CH,COOH (K, = 1.76 x 105) 0.4 M
with a solution of NaOH 0.4 M, calculate the pH of the resulting
solution after addition of:
a- 0 mL NaOH
b- 10 mL NaOH
c- 20 mL NaOH
d- 30 mL NaOH
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