1 Qstn per excel sheet. Do it as fast as you can plz. Q 1:In an excel sheet: A 50-ml aliquot of 0.100 M pyridinium chloride (Ka = 5.90×10-6) is titrated with 0.100 M KOH. a) Calculate the pH of the solution after the addition of 0, 5, 15, 25, 40, 45, 49, 50, 51, 55, and 60 mL of the base, prepare a titration curve for the data. b) If the titration error must be smaller than 0.05 mL. Which indicator can be chosen for this goal? Q 2: In an excel sheet: In an excel sheet: A 0.4878 M solution NaOH was used to titrate formic acid (HCOOH) (46 g/mol) in a dilute aqueous solution. The following results were obtained SampleSample Volume (ml)NaOH Volume 150.00 42.17 2 48.50 41.54 325.10 21.28 450.00 42.22 549.50 42.68 a) Calculate the mean mass percent of formic acid in the sample ( the density of diluted formic acid is 1.050 g/ml) b) Calculate the standard deviation for the results. c) Calculate the 95% confidence interval for the mean d) At 95% confidence level, could any of the results be discarded?
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