You prepare a standard NaOH solution for the laboratory, usingpotassium hydrogen phthalate (KHC,H,O,, abbreviated KHP) as theprimary standard. KHP (molar mass = 204.22 g/mol) has one acidichydrogen. It took 31.55 mL of the NaOH solution to titrate (reactexactly with) 0.750 g KHP. You then use the standard base solution todetermine the amount of ascorbic acid in a 500.0 mg tablet of vitaminC. Ascorbic acid (HC̟H,O, molar mass 176.12 g/mol) also has oneacidic hydrogen, and is usually mixed with some filler in preparing thetablets. It requires 19.14 mL of the NaOH to titrate (react exactly with)the ascorbic acid found in one 500.0 mg tablet. What is the percentvitamin C by mass in the tablet?

Answered: Image /qna-images/answer/7f324005-aeb0-4395-a30b-ece4547355b9.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

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter4: Types Of Chemical Reactions And Solution Stoichiometry

Section: Chapter Questions

Problem 47E

See similar textbooks

Related questions

Q: how many atoms are there in one molecule of glucose(C6H12O6

Q: Rank the following from least to greatest mass.cg, mg, Mg

A: The standard unit of mass in the metric system is the gram. Other units of mass are milligram,…

Q: Bauxite is the ore that aluminum comes from. Its” formula is ( Al2O3) What is the percent Aluminum?

A: Given Moleular formula = Al2 O3 atomic mass of Al = 26.98 gmol-1 atomi mass of O = 15.999…

Q: Another student performed the same percent composition of a hydrate experiment, but kens the…

A: 3a. The experiment was the determination of percent composition of hydrate.

Q: 17. C,HFCOOH Name of element:

A: Since you have posted multiple questions, the answer for first question is given below. Kindly…

Q: Ascorbic acid ( vitamin C) molar mass 176g/mol A healthy adult's daily requirement is 70-90 mg a…

A: The daily requirement of vitamin C for a healthy adult's is = 70-90 mg The molar mass of vitamin C…

Q: A low-strength aspirin tablet (sometimes called a baby aspirin) contains 81 mg81 mg of the active…

A: Each aspirin tablet contains 81 mg of an active ingredient. 100 tablets contain=100×81 mg=8100 mg

Q: What is Kc?

A: Interpretation: The information about Kc is to be provided.

Q: Ocean water contains 3.5% NaCl by mass. Part A How much salt can be obtained from 304 g of seawater?…

A: Given, 304g of sea water It is 3.5% NaCl by mass

Q: grams of I?

Q: What is the mass of oxygen in 1 g of glutamine

A: Structure of glutamine is shown in image. It is a basic amino acid. It's molecular weight is 146.14…

Q: The percent by mass of oxygen in CH4O is? (Answer in significant figures)

Q: sample of water has 2.15x1024 molecules. What is the mass of the sample?

A: Molecular weight of water = 18 g/ mol 1mol of any substance contain 6.023× 1023 number of…

Q: How many molecules of glucose are present in 27.4 grams?

A: The expression for number of moles is given by, Number of moles =MassMolar mass 1 mole of a…

Q: A 33.5 metric ton sample of ore yields 2.95 metric tons of iron. What is the percent of iron in the…

A: Given that,Mass of ore sample = 33.5 metric tonMass of iron = 2.95 metric ton

Q: On average, people use one teaspoon (2.5 g) of instant tea to make a 8-oz glass of ice tea. The…

A: 1 oz of iced tea contains 10 mg of caffeine.Therefore, 8 oz of iced tea contains 80 mg (0.08 g) of…

Q: Part A The American Dental Association recommends that an adult female should consume 3.0 mg of…

Q: percent mass

Q: how many mg does a 433 kg sample contain? Please answer in unit converstion form.

A: As we know, 1kg = 106 mg

Q: An Alloy is made by mixing 40.0 grams of tin, 30.0 grams of lead and 55.0 grams of copper. What is…

A: Here we are provided with the mass of each metals in the given alloy. So, it is very easy to find…

Q: What is the mass percent of potassium chloride when 9.35 grams of potassium chloride is mixed into…

A: Mass percent = (mass of solute/ mass of solution) x 100%

Q: Determine the formula weight of caffeine, C₈H₁₀N₄O₂. Provide an answer to two decimal places.

A: The formula weight of caffeine can be calculated as follows:

Q: The normalty of 0.14 mol/L Al2O3

A: When molarity is multiplied by the n- factor we get normality. Al2O3 has the n-factor of 6.

Q: How many grams of NaCl would you need to add to 3.0 L of water to make 55 mM NaCl?

A: molarity is defined as no of moles of solute devided by volume of solution in liter

Q: Write the correct answer with 1 place after the decimal point. What is the molecular mass of…

A: Given, molecular mass of S2N5O5 = ? Note: Atomic mass of S = 32.06 g/mol Atomic mass of N = 14.01…

Q: Find the mass of 1 molecule of HF in gram.

A: 1 mole = 6.022×1023 [ Avogadro number ] The mass of 1 mole of molecules of a substance is called its…

Q: The mass of a test tube and hydrate was 35.2755 grams. The mass of the empty test tube was 23.7726…

A: Mass of water is equal to the mass of the hydrated salt test tube and the mass of anhydrous salt…

Q: 11.3 g of biphenyl in 30.3 g of benzene?

A: Given data are as follows Vapor pressure of pure benzene = 100.84 Torr Weight of biphenyl = 11.3 gm…

Q: a 5.000g sample that contained NaCl and BaCl2 *2H2O was heated. After heating the sample had a…

A: Given : Mass of sample of NaCl and BaCl2*2H2O = 5.000 g And mass of sample after heating = 4.688 g

Q: e percentage of Mg in the sample

Q: High-density lipoprotein (HDL) cholesterol is the “good” cholesterol because adequate levels reduce…

Q: oWhatis the pencentaage of Mg (NO3) water in H2O (round to decimal places) ouhat is the of water in…

Q: 2. A 1.235 g sample of unknown strontium chloride hydrate was found to have 0.511 g of water…

A: Given : Mass of hydrate compound = 1.235 g And mass of water present = 0.511 g

Q: which has the greater volume---10g of hexane or 10g of toluene? what is the volume of each

A: Given that: Mass of hexane = 10g Mass of toluene = 10g We know , density of hexane = 0.66g/mL…

Q: Fluoride ion is poisonous in relatively low amounts: 0.2 g of F⁻ per 70 kg of body weight can cause…

A: Water fluoridation is the controlled adjustment of fluoride to a public water supply to reduce tooth…

Q: In an experiment to measure the amount of citric acid in orange juice, citric acid is the sample and…

Q: BaCl2٠2H2O What is the mass salt? What is the mass water? What is the mass percent?

A: Ans

Q: 1. What is the mass of the water used for this experiment?

A: To solve this problem we will use the mass of empty can and the mass of can and water .

Q: What is the total mass of all the grocery store plastic bags used by an average American family in…

A: A question based on environmental chemistry, which is to be accomplished.

Q: What is the mass in grams of 4.28x10^22 molecules of water ?

Q: mothball, composed of naphthalene (C10H8C10H8), has a mass of 1.48 gg . How many naphthalene…

A: Mass= 1.48gm MOLAR mass= 128 Mole= mass÷molar mass Mole= 1.48÷128= 0.011 Molecule= mole×6×1023…

Q: Remdesivir is a broad-spectrum antiviral medication that is currently being used to treat Covid- 19.…

Q: Ocean water contains 3.4 sodium chloride by mass. What made of ocean water in gram contains 13.2 g…

A: Number of moles of a chemical compound is used to measure the amount of compound in the given…

Q: How many GRAMS of sodium are present in 1.41 grams of sodium chloride, NaCl ? ____grams sodium How…

A: Given,Mass of sodium chloride, NaCl = 1.41 gMoles of NaCl can be calculated as:

Q: How many ,mew mg are there in 1 mg?

A: The units of measurement of the weight of any compound can be given in grams (g) or milligrams (mg).

Q: the mass of o

Q: What is the name of the unit that equals (a) 10-9 gram,

A: Given: 10-9 gram

Q: Glass A contains 2 liters of alcohol, and the rest is water. Glass B contains 2 liters of 40%…

A: Given: Glass A has 2 L of alcohol. Glass B has a total of 2 L solution with 40 % alcohol. And glass…

Concept explainers

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

Question

You prepare a standard NaOH solution for the laboratory, using
potassium hydrogen phthalate (KHC,H,O,, abbreviated KHP) as the
primary standard. KHP (molar mass = 204.22 g/mol) has one acidic
hydrogen. It took 31.55 mL of the NaOH solution to titrate (react
exactly with) 0.750 g KHP. You then use the standard base solution to
determine the amount of ascorbic acid in a 500.0 mg tablet of vitamin
C. Ascorbic acid (HC̟H,O, molar mass 176.12 g/mol) also has one
acidic hydrogen, and is usually mixed with some filler in preparing the
tablets. It requires 19.14 mL of the NaOH to titrate (react exactly with)
the ascorbic acid found in one 500.0 mg tablet. What is the percent
vitamin C by mass in the tablet?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Step by step

Solved in 3 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

A mountain lake that is 4.0 km × 6.0 km with an average depth of 75 m has an H+(aq) concentration of 1.3 × 10−6 M. Calculate the mass of calcium carbonate that would have to be added to the lake to change the H+(aq) concentration to 6.3 × 10−8 M. Assume that all the carbonate is converted to carbon dioxide, which bubbles out of the solution.
One half liter (500. mL) of 2.50 M HCl is mixed with 250. mL of 3.75 M HCl. Assuming the total solution volume after mixing is 750. mL, what is the concentration of hydrochloric acid in the resulting solution? What is its pH?
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 sample of solid calcium hydroxide, Ca(OH)2, is allowed to stand in water until a saturated solution is formed. A titration of 75.00 mL of this solution with 5.00102M HCl requires 36.6 mL of the acid to reach the end point. Ca(OH)2(aq)+2HCl(aq)CaCl2(aq)+2H2O(l) What is the molarity?
Suggest a method for separating a precipitate consisting of a mixture of solid CuS and solid Cu(OH)2.
The equivalence point for the titration of a 25.00-mL sample of CSOH solution with 0.1062 M HNO3 is at 35.27 mL. What is the concentration of the CsOH solution?
Twenty-five milliliters of a solution (d=1.107g/mL)containing 15.25% by mass of sulfuric acid is added to 50.0 mL of 2.45 M barium chloride. (a) What is the expected precipitate? (b) How many grams of precipitate are obtained? (c) What is the chloride concentration after precipitation is complete?
Hydrochloric acid. HCl, with a concentration of 0.100 M can be purchased from chemical supply houses, and this solution can be used to standardize the solution of a base. If titrating 25.00 mL of a sodium hydroxide solution to the equivalence point requires 29.67 mL of 0.100 M HCI, what is the concentration of the base?
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?
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?
Rust, which you can take to be Fe(OH)3, can be dissolved by treating it with oxalic acid. An acid-base reaction occurs, and a complex ion is formed. (a) Write a balanced equation for the reaction. (b) What volume of 0.10 M H2C2O4 would be required to remove a rust stain weighing 1.0 g?
You are given four different aqueous solutions and told that they each contain NaOH, Na2CO3, NaHCO3, or a mixture of these solutes. You do some experiments and gather these data about the samples. Sample A: Phenolphthalein is colorless in the solution. Sample B: The sample was titrated with HCl until the pink color of phenolphthalein disappeared, then methyl orange was added. The solution became pink. Methyl orange changes color from pH 3.01 (red) to pH 4.4 (orange). Sample C: Equal volumes of the sample were titrated with standardized acid. Using phenolphthalein as an indicator required 15.26 mL of standardized acid to change the phenolphthalein color. The other sample required 17.90 mL for a color change using methyl orange as the indicator. Sample D: Two equal volumes of the sample were titrated with standardized HCl. Using phenolphthalein as the indicator, it took 15.00 mL of acid to reach the equivalence point; using methyl orange as the indicator required 30.00 mL HCl to achieve neutralization. Identify the solute in each of the solutions.