Which of the following statements is/are TRUE when the purity of the KHP is notconsidered in the calculation of the molarity of the 0.10M NaOH titrant?I. The calculated concentration of the acetic acid would be less than the trueconcentration of the acetic acid in the vinegar sample.II. The volume of the 0.1M NaOH titrant that would be used in titrating the soda sampleswould be lower than the supposedly titrant volume to reach the endpoint.III. The calculated concentration of the acetic acid would be higher than the trueconcentration of the acetic acid in the vinegar sample.O a. III onlyO b. I and IIО с. ГonlyO d. Il and IIWhich of the following techniques would NOT result in a titration error?a. Rinsing the burette with distilled water prior to filling it up with the titrant.O b. Adding 100mL of distilled water instead of 50mL to the vinegar sample.O c. Titrating duplicate trials of soda samples within a 30-minute interval.O d. Reusing an uncleaned Erlenmeyer flask for the second trial of titration.Which of the following is/are TRUE about equivalence and end points?I. The end point of a titration is reached when the titrant and analyte arestoichiometrically equal.II. When you are titrating a strong or weak acid with a strong base, the end point willalways be faint pink using a phenolphthalein indicator.III. When you are titrating a strong or weak acid with a strong base, the volume needed toreach the end point will always be lower than that of the equivalence point.O a. I and IIO b. III onlyI, Il and IIIO d. Il onlyCan a tablet be sufficient in neutralizing a 100. mL of stomach acid with a pH of 1.50?Hint: H* concentration is antilog(-pH).Answer:

Which of the following statements is/are TRUE when the purity of the KHP is not considered in the calculation of the molarity of the 0.10M NaOH titrant? I. The calculated concentration of the acetic acid would be less than the true concentration of the acetic acid in the vinegar sample. II. The volume of the 0.1M NaOH titrant that would be used in titrating the soda samples would be lower than the supposedly titrant volume to reach the endpoint. III. The calculated concentration of the acetic acid would be higher than the true concentration of the acetic acid in the vinegar sample.

Which of the following statements is/are TRUE when the purity of the KHP is not considered in the calculation of the molarity of the 0.10M NaOH titrant? I. The calculated concentration of the acetic acid would be less than the true concentration of the acetic acid in the vinegar sample. II. The volume of the 0.1M NaOH titrant that would be used in titrating the soda samples would be lower than the supposedly titrant volume to reach the endpoint. III. The calculated concentration of the acetic acid would be higher than the true concentration of the acetic acid in the vinegar sample.

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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Volumetric Analysis: Determination of Acetic Acid in Vinegar The endpoint of the titration of the vinegar sample is overshot! How will this technique error affect the calculated percent acetic acid in the vinegar?
Which of the following statements is/are TRUE when the purity of the KHP is not considered in the calculation of the molarity of the 0.10M NaOH titrant?I. The calculated concentration of the acetic acid would be less than the true concentration of the acetic acid in the vinegar sample.II. The volume of the 0.1M NaOH titrant that would be used in titrating the soda samples would be lower than the supposedly titrant volume to reach the endpoint.III. The calculated concentration of the acetic acid would be higher than the true concentration of the acetic acid in the vinegar sample. a.I only b.II and III c.III only d.I and II
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