5. Determining the percent sulfuric acid in an unknown solution. Experimental Procedure and Results: You determine that there are exactly 20 drops in one mL and you are using 1.65 M sodium hydroxide in the experiment. Assume the solution densities are the same as water at room temperature. You select an aqueous solution of dilute sulfuric acid and pour between 10 and 20 mL of it into a 50 mL beaker, then add 2 drops of phenolphthalein indicator. You then add sodium hydroxide dropwise until the solution just turns pink. The following is your experimental data. Mass of the empty 50 mL beaker: 52.25 g Mass of beaker plus unknown solution: 66.55 g Drops of NaOH to get the pink color: 65 Answer the following question and show your calculations a) What is the percent by mass of sulfuric acid in the unknown solution?

5. Determining the percent sulfuric acid in an unknown solution. Experimental Procedure and Results: You determine that there are exactly 20 drops in one mL and you are using 1.65 M sodium hydroxide in the experiment. Assume the solution densities are the same as water at room temperature. You select an aqueous solution of dilute sulfuric acid and pour between 10 and 20 mL of it into a 50 mL beaker, then add 2 drops of phenolphthalein indicator. You then add sodium hydroxide dropwise until the solution just turns pink. The following is your experimental data. Mass of the empty 50 mL beaker: 52.25 g Mass of beaker plus unknown solution: 66.55 g Drops of NaOH to get the pink color: 65 Answer the following question and show your calculations a) What is the percent by mass of sulfuric acid in the unknown solution?

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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