I know it's a lot, but I would really appreciate some help! StorybaseStudents were asked to perform a lab to identify an unknown acid.The experiment has several parts.First the students had to make a sodium hydroxide solution with a molarity of approximately 0.2M.Then the students had to perform a titration with potassium hydrogen phthalate to standardize theirsolution.Finally they had to perform a titration with the unknown acid to find the pKa and the molar mass, thenusing their data they had to determine which of the weak acids they had used.Part 1) Make a sodium hydroxide solutionA student measured 4.03 grams of NaOH in a tared weigh boat. They then dissolved it into approximately 200 mLof deionized water in a beaker. Once it was completely dissolved the student poured the solution into a 500.0 mLvolumetric flask. The student rinsed the beaker with deionized water and added the rinse water to the volumetricflask. They repeated with process, adding the rinse water to the volumetric flask again, they mixed this thoroughly.Finally, they filled the volumetric flask with distilled water, mixing and then waited for the solution to reach roomtemperature before topping off the solution.A) Calculate the theoretical molarity of the NaOH solution.M = molNuot4.03gX1 ml NaOllNabit39.9985Part 2) Standardize the NaOH solution.NaOH is a hygroscopic solid, which means that it can absorb water from its surroundings, therefore it is importantto determine the actual concentration of the sodium hydroxide solution. To do this the sodium hydroxide solutionis titrated with potassium hydrogen phthalate, (KHC8H404, Molar mass = 204.23g/mol). KHP is a stablemonoprotic solid acid. 1.04 grams of potassium hydrogen phthalate was dissolved into 100.0 mL of water, 2 dropsof indicator was added. This was then titrated with the sodium hydroxide solution that was made in part 1. Theinitial reading of the buret was 1.23 mL and at the equivalence point in the titration 28.74 mL was the reading onthe base buret.0.100755 rol NooitNaOH(aq) + KHC8H404 (aq) NaKC8H404(aq) + H₂OOH(aq) + HC8H404°(aq) ⇒ C8H404² (aq) + H₂O)B) How many moles of KHP were used?C) What volume of NaOH was needed?D) What it the molarity of the standardized NaOH solution?Lnetges od08 (8Part 3) Determine the identity of a unknown solidThe standardized solution of NaOH was then used to determine the identity of an unknown acid. 0.785 grams ofthe unknown monoprotic acid was titrated using 23.55 mL of the sodium hydroxide solution. The graph below wascreated.HA(aq) + OH(aq) = H₂O + A (aq)

For the neutralization reaction between KHP and NaOH, for both components 1 mol amount is required,…

Answered: B) How many moles of KHP were used? C)…

B) How many moles of KHP were used? C) What volume of NaOH was needed? D) What it the molarity of the standardized NaOH solution?

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter16: Reactions Between Acids And Bases

Section: Chapter Questions

Problem 16.102QE

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