Question 25 of 30Submitabbreviated KHP) as the primarystandard. KHP (molar mass = 204.22 g/mol) has one acidic hydrogen. It took31.55 mL of the NaOH solution to titrate(react exactly with) 0.750 g KHP. Youthen use the standard base solution todetermine the amount of ascorbic acid ina 500.0 mg tablet of vitamin C. Ascorbicacid (HC6H,O6, molar mass 176.12 g/mol)also has one acidic hydrogen, and isusually mixed with some filler inpreparing the tablets. It requires 19.74 mLof the NaOH to titrate (react exactly with)the ascorbic acid found in one 500.0 mgtablet. What is the percent vitamin C bymass in the tablet?146.C7+/-x 10 0Tap here or pull up for additional resourcesLO00 Question 25 of 30SubmitYou prepare a standard NAOH solutionfor the laboratory, using potassiumhydrogen phthalate (KHC§H,0a,abbreviated KHP) as the primarystandard. KHP (molar mass = 204.22 g/mol) has one acidic hydrogen. It took31.55 mL of the NaOH solution to titrate(react exactly with) 0.750 g KHP. Youthen use the standard base solution todetermine the amount of ascorbic acid ina 500.0 mg tablet of vitamin C. Ascorbicacid (HC6H,O6, molar mass 176.12 g/mol)also has one acidic hydrogen, and isusually mixed with some filler inpreparing the tablets. It requires 19.74 mLof the NaOH to titrate (react exactly with)| %146.C7+/-x 10 0Tap here or pull up for additional resourcesLO00

Answered: Image /qna-images/answer/ce5ba6d5-db6c-4b9d-895b-e1e3fa72fcb2.jpg

Answered: the ascorbic acid found in one 500.0 mg…

Science

Chemistry

the ascorbic acid found in one 500.0 mg tablet. What is the percent vitamin C by mass in the tablet?

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter6: Types Of Chemical Reactions And Solution Stoichiometry

Section: Chapter Questions

Problem 106AE: Carminic acid, a naturally occurring red pigment extracted from the cochineal insect, contains only...

See similar textbooks

Similar questions

An acid is titrated with NaOH. The following beakers are illustrations of the contents of the beaker at various times during the titration. These are presented out of order. Note: Counter-ions and water molecules have been omitted from the illustrations for clarity. (a) (b) (c) (d) (e) a. Is the acid a weak or strong acid? How can you tell? b. Arrange the beakers in order of what the contents would look like as the titration progresses. c. For which beaker would pH = pKa? Explain your answer. d. Which beaker represents the equivalence point of the titration? Explain your answer. e. For which beaker would the Ka value for the acid not be necessary to determine the pH? Explain your answer.
A solution of hydrochloric acid has a volume of 250. mL and a pH of 1.92. Exactly 250. mL of 0.0105 M NaOH is added. What is the pH of the resulting solution?
A solution of sodium cyanide, NaCN, has a pH of 12.10. How many grams of NaCN are in 425 mL of a solution with the same pH?
3.85 The particulate drawing shown represents an aqueous so- lution of an acid HA, where A might represent an atom or group of atoms. Is HA a strong acid or a weak acid? Explain how you can tell from the picture.
8-98 When a solution prepared by dissolving 4.00 g of an unknown monoprotic acid in 1.00 L of water is titrated with 0.600 M NaOH, 38.7 ml, of the NaOH solution is needed to neutralize the acid. Determine the molarity of the acid solution. What is the molar mass of the unknown acid?
What acid-base indicators, shown in Figure 18.24 would be suitable for the neutralization reaction whose titration curve is shown in Figure 18.30?Why?
A scientist has synthesized a diprotic organic acid, H2A, with a molar mass of 124.0 g/mol. The acid must be neutralized (forming the potassium salt) for an important experiment. Calculate the volume of 0.221 M KOH that is needed to neutralize 24.93 g of the acid, forming K2A.
If one mole of the following compounds were each placed into separate beakers containing the same amount of water, rank the Cl(aq) concentrations from highest to lowest (some may be equivalent): KCl, AlCl3, PbCl2, NaCl, HCl, NH3, KOH, and HCN.
ssume a highly magnified view of a solution of HCI that allows you to “see” the HCl. Draw this magnified view. If you dropped in a piece of magnesium, the magnesium would disappear, and hydrogen gas would he released. Represent this change using symbols for the elements, and write the balanced equation.
. What does it mean to say that an acid is strong in aqueous solution? What does this reveal about the ability of the acids anion to attract protons?
Carminic acid, a naturally occurring red pigment extracted from the cochineal insect, contains only carbon, hydrogen, and oxygen. It was commonly used as a dye in the first half of the nineteenth century. It is 53.66% C and 4.09% H by mass. A titration required 18.02 mL of 0.0406 M NaOH to neutralize 0.3602 g carminic acid. Assuming that there is only one acidic hydrogen per molecule, what is the molecular formula of carminic acid?
Vitamin C has the formula C6H8O6. Besides being an acid, it is a reducing agent. One method for determining the amount of vitamin C in a sample is to titrate it with a solution of bromine, Br2, an oxidizing agent. C6H8O6(aq) + Br2(aq) 2 HBr(aq) + C6H6O6(aq) A 1.00-g "chewable" vitamin C tablet requires 27.85 ml of 0.102 M Br2 for titration to the equivalence point. What is the mass of vitamin C in the tablet?