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7. In your data book prepare the following table (Give a title to the table). With any measured value you must show its units with the column heading. Use a ruler to prepare the lines for the table. Title Titration # KHP (g) Vfinal (mL) Vinitial (mL) Vtotal NaOH (mL) 1 2 3 Proper reading of your buret: 3.0 3.0 Meniscus (3.30 ml) -Meniscus (3.90 ml) 4.0 4.0 Assume that the buret is filled to the point indicated in the figure at the left. You would record the initial point as 3.30 ml; the ending point would be 3.90 ml. Therefore, the titration would have required 0.60 ml. Remember that you should read the number that is at the bottom of the meniscus. 3.90 – 3.30 = 0.60 mL Your buret volume readings for this example would be entered on your table as follows: Titration # KHP (g) Vinal (mL) | Vinitial (mL) | Vtotal NaOH (mL) 1 3.90 3.30 0.60 3

7. In your data book prepare the following table (Give a title to the table). With any measured value you must show its units with the column heading. Use a ruler to prepare the lines for the table. Title Titration # KHP (g) Vfinal (mL) Vinitial (mL) Vtotal NaOH (mL) 1 2 3 Proper reading of your buret: 3.0 3.0 Meniscus (3.30 ml) -Meniscus (3.90 ml) 4.0 4.0 Assume that the buret is filled to the point indicated in the figure at the left. You would record the initial point as 3.30 ml; the ending point would be 3.90 ml. Therefore, the titration would have required 0.60 ml. Remember that you should read the number that is at the bottom of the meniscus. 3.90 – 3.30 = 0.60 mL Your buret volume readings for this example would be entered on your table as follows: Titration # KHP (g) Vinal (mL) | Vinitial (mL) | Vtotal NaOH (mL) 1 3.90 3.30 0.60 3

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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using it. Fill the buret to about the 0 mL mark. Release some of the solution into an empty beaker. There should be no air bubbles in the tip of the buret. When this is completed, be sure to record the starting volume of the solution in the buret. The initial reading will not be 0.0. When you record volume of a liquid in a 50 mL buret, be sure to record two digits to the right of the decimal point. The last digit is estimated. 7. In your data book prepare the following table (Give a title to the table). With any measured value you must show its units with the column heading. Use a ruler to prepare the lines for the table. Title Titration # KHP (g) Vfinal (mL) | Vinitial (mL) | Vtotal NaOH (mL) 1 3 Proper reading of your buret: 3.0 3.0 -Meniscus (3.30 ml) -Meniscus (3.90 ml) 4.0 4.0 Assume that the buret is filled to the point indicated in the figure at the left. You would record the initial point as 3.30 ml; the ending point would be 3.90 ml. Therefore, the titration would have required 0.60 ml. Remember that you should read the number that is at the bottom of the meniscus. 3.90 – 3.30 = 0.60 mL Your buret volume readings for this example would be entered on your table as follows: Titration # KHP (g) Vfinal (mL) Vinitial (mL) | Vtotal NaOH (mL) 3.90 3.30 0.60 2 3 8. Add 3 drops of phenolphthalein indicator and a clean magnetic stirring bar to the first flask and titrate using the standard NaOH to the first faint pink end point that persists 40
Transcribed Image Text:using it. Fill the buret to about the 0 mL mark. Release some of the solution into an empty beaker. There should be no air bubbles in the tip of the buret. When this is completed, be sure to record the starting volume of the solution in the buret. The initial reading will not be 0.0. When you record volume of a liquid in a 50 mL buret, be sure to record two digits to the right of the decimal point. The last digit is estimated. 7. In your data book prepare the following table (Give a title to the table). With any measured value you must show its units with the column heading. Use a ruler to prepare the lines for the table. Title Titration # KHP (g) Vfinal (mL) | Vinitial (mL) | Vtotal NaOH (mL) 1 3 Proper reading of your buret: 3.0 3.0 -Meniscus (3.30 ml) -Meniscus (3.90 ml) 4.0 4.0 Assume that the buret is filled to the point indicated in the figure at the left. You would record the initial point as 3.30 ml; the ending point would be 3.90 ml. Therefore, the titration would have required 0.60 ml. Remember that you should read the number that is at the bottom of the meniscus. 3.90 – 3.30 = 0.60 mL Your buret volume readings for this example would be entered on your table as follows: Titration # KHP (g) Vfinal (mL) Vinitial (mL) | Vtotal NaOH (mL) 3.90 3.30 0.60 2 3 8. Add 3 drops of phenolphthalein indicator and a clean magnetic stirring bar to the first flask and titrate using the standard NaOH to the first faint pink end point that persists 40
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