30. A sample of vinegar weighing 10.52 g is titrated with NaOH. The end point is overstepped, and the solution is titrated back with HCl. From the following data, calculate the acidity of the vinegar in terms of percentage of acetic acid, CH;COOH (60.05 g/mol) Standardization Data: 1.050 mL HCI = 1.000 mL NaOH 1.000 mL NaOH = 0.06050 g benzoic acid, CHSCOOH (122.12 g/mol) Sample Analysis Data: Volume NaOH used = 19.03 ml Volume HCI used for back titration = 1.50 ml

30. A sample of vinegar weighing 10.52 g is titrated with NaOH. The end point is overstepped, and the solution is titrated back with HCl. From the following data, calculate the acidity of the vinegar in terms of percentage of acetic acid, CH;COOH (60.05 g/mol) Standardization Data: 1.050 mL HCI = 1.000 mL NaOH 1.000 mL NaOH = 0.06050 g benzoic acid, CHSCOOH (122.12 g/mol) Sample Analysis Data: Volume NaOH used = 19.03 ml Volume HCI used for back titration = 1.50 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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Calculate the molarity of an NaOH solution from the following titration data. Be sure the answer has the correct amount of significant figures. The chemical equation for this titration is as follows: NaOH + KHP → NaKP + H₂O NaOH buret reading, inital: 15.27 mL NaOH buret reading, final: 8.32 mL Mass of KHP (204.22 g/mol): 1.1592 g
Calculate the molarity of an NaOH solution from the following titration data. Be sure the answer has the correct amount of significant figures. The chemical equation for this titration is as follows: NaOH + KHP ⟶ NaKP + H2O NaOH buret reading, inital: 15.27 mL NaOH buret reading, final: 8.32 mL Mass of KHP (204.22 g/mol): 1.1592 g Calculate the molarity of an NaOH solution from the following titration data. Be sure the answer has the correct amount of significant figures. The chemical equation for this titration is as follows: NaOH + KHP ⟶ NaKP + H2O NaOH buret reading, inital: 15.27 mL NaOH buret reading, final: 8.32 mL Mass of KHP (204.22 g/mol): 1.1592 g
O SIMPLE REACTIONS Determining the molar mass of an acid by titration Jacque An analytical chemist weighs out 0.279 g of an unknown diprotic acid into a 250 mL volumetric flask and dilutes to the mark with distilled water. He then titrates this solution with 0.1400M NaOH solution. When the titration reaches the equivalence point, the chemist finds he has added 33.8 mL of NaOH solution. Calculate the molar mass of the unknown acid. Round your answer to 3 significant digits. mol fo Exnation Check |Privecy 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use MacBook Air
A student measures that it takes 7.21mL of 0.326 M NaOH (aq) solution to reach the first equivalence point of a titration of 100.0 mL of phosphoric acid solution. He also notes that it takes a total of 14.40 mL of 0.326 M NaOH (aq) solution to reach the second equivalence point. What is the concentration of the phosphoric acid solution?
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