Consider the titration of 40.0 mL of 0.250 Methanoic acid, CH3COOH, with 0.100 M calcium hydroxide. The Ka of ethanoic acid is 1.8 x 10-5. Complete the following table with the appropriate volumes and pH readings. Report volumes to one decimal place and pH values to two decimal places. You may ignore the autoprotonation of water. Please clearly show all work. You may attach additional paper to this sheet as needed. pH Vol. Ca(OH)2 (mL) initial midpoint equivalence point 0.0 mL 60.0 mL

Consider the titration of 40.0 mL of 0.250 Methanoic acid, CH3COOH, with 0.100 M calcium hydroxide. The Ka of ethanoic acid is 1.8 x 10-5. Complete the following table with the appropriate volumes and pH readings. Report volumes to one decimal place and pH values to two decimal places. You may ignore the autoprotonation of water. Please clearly show all work. You may attach additional paper to this sheet as needed. pH Vol. Ca(OH)2 (mL) initial midpoint equivalence point 0.0 mL 60.0 mL

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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3. A solution was prepared by adding 4.95 g sodium acetate (NaC;H;O2) to 250.0 mL of 0.150 M acetic acid (K = 1.75 x 10). Assume negligible volume change. a) What is the pH of the resulting solution? PH: pk2 + log CH3 02) moles saium 4.959 0.06 mol %3D 2cent %3D 82gmu H: -log (1.73x 10) + log 0.24 moles 2cete 250 x 0.15 IL :00375 1000me PH : 4 1.96 O.06 (N2 G Hs0): 0.24m 0.230 L O.0375 : CCHS COOH): 0 15 m Assume 125.0 mL of the solution prepared above was put into a beaker and 82 mg of NaOH was added to it. What is the pH of this new mixture? b)
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Questions 15-20 refer to the same weak base/strong acid (WB/SA) titration. The K of pyridine is 1.7 x 10-⁹. A 40.00 mL solution of 0.700 M pyridine (C5H5N) is being titrated with 1.05 M hydrochloric acid (HCI). What is the solution when 15.00 mL of titrant have been added? (Two decimal places) Type your answer...
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docs.google.com/forms/d/e the plI for the salt solution. Kb=1.8 ×10-5 10.02 3.98 5.28 هذا السؤال مطلوب Q3// Calculate the sodium acetate concentration that used in preparing a buffer solution with pH=4.5, if the acid concentration is o.5 M, ka=1.8 x10-5 0.287 M 3.47 м О 0.278 M Q4// Calculate the molar concentration for acetic * acid that ionized at 2.5%, ka=1 ×10-5 4x10-4 M 1.6x10-3 M 0.016 M هذا السؤال مطلوب
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