Your lab instructor has provided you with a sample that contains NaHSO3 (as the only acid substance) and has asked you for the percentage of NaHSO3 in the sample. A 0.8555 g portion of the sample required 33.33 mL of 0.06006 M NaOH to reach the equivalence point. What is the mass percentage of NaHSO3 in the original sample provided? b. A solution of sulfuric acid was provided as an unknown

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter4: Types Of Chemical Reactions And Solution Stoichiometry
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Problem 132CWP: When organic compounds containing sulfur are burned, sulfurdioxide is produced. The amount of SO2...
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 Your lab instructor has provided you with a sample that contains NaHSO3 (as the only acid substance) and has asked you for the percentage of NaHSO3 in the sample. A 0.8555 g portion of the sample required 33.33 mL of 0.06006 M NaOH to reach the equivalence point.
What is the mass percentage of NaHSO3 in the original sample provided?


b. A solution of sulfuric acid was provided as an unknown and you are asked to determine the concentration. According to the procedure you pipet 50.00 mL of the acid solution into an Erlenmeyer flask, add three drops of phenolphthalein indicator, and carefully titrate it with 0.9876 M NaOH. If it takes 39.18 mL to reach the end point, what is the concentration of H2SO4? Provide the complete titration reaction.

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