1. Prepare a fresh stock solution of 50 cm3of 0.2% ascorbic acid. 2. Prepare 5 standard solutions of ascorbic acid in volumetric flasks of 25 cm3. 3. To each volumetric flask add 0.5 cm3 of 0.5M acetate buffer and different volumes of 0.2% ascorbic acid to make 0.01 mM, 0.02 mM, 0.03 mM, 0.04 mM and 0.05 mM solutions. Dilute to the mark with distilled water.

Q: Which of the following compounds will have the highest molar solubility in pure water? SnS, Ksp =…

A: To determine which compound will have the highest molar solubility in pure water, we need to compare…

Q: Emts ou (2)f (3) tants T 10. A 30.00 mL sample of 9.00 x 10 Macetic acid (CH3COOH) was added to…

A: 1.The Volume of NaOH should be graphed in the abscissa.Reason: The volume of NaOH is the controlled…

Q: Molarity of NaOH (phenophthalein) 0.1132 Volume of HC2H3O2 (acetic acid) 25.00 ml. vinegar %3D TRIAL…

A: Given data,Molarity of NaOH=0.1132MVolume of acetic acid=25.0mL=0.025L

Q: hioglycolic acid, a substance used in depilatory agents (hair removers) has pK₁ = 3.42. What is the…

A: In the given question->pKa = 3.42 pH = 3.00 Suppose, thioglycolic acid is HA and conjugate base…

Q: Which is the correct order of steps in the preparation of a hydrochoric acid standard solution with…

A: Standard solution is a solution containing a precisely known concentration of an element or a…

Q: 1) A soda- Lime Sample is g0% NaoH and 10% CaO · If 3gm is dissolved in 250 ml, what is the tutal…

A: Given: mass of mixture = 3 gram  Volume of solution = 250 ml To find : Normality of solution and…

Q: This is about determinition of acid content in vinegar through titration, please answer the…

A: Burette is filled with NaOH to carry out the titration, which needs to be rinsed. Furthermore,…

Q: What volume of 0,02 mol.dm sulphuric acid would be needed to neutralise a solution by mixing 20 cm…

A:

Q: A student determined her H2SO4 solution concentration to be 0.0610 M.  The actual concentration of…

A: Given information is:    Determined concentration of H2SO4 = 0.0610M             Actual…

Q: Standard solution : 0.201 grams of acetylsalicylic acid was combined with 10 mL of 0.5 M NaOH, then…

A: A) To determine the concentration of acetylsalicylic acid in the 100.00 mL volumetric flask, we…

Q: The graphic below shows the general procedure for titrating the saturated solution of magnesium…

A: The question is based on the concept of solubility product principle. It states that when a weak…

Q: PRE-LAB QUESTIONS 1. Calculate the molarity of a 6.15% (w/v%) sodium hypochlorite (NAOCI) solution.…

A: A question based on quantitative analysis, which is to be accomplished.

Q: Standard solution : 0.201 grams of acetylsalicylic acid was combined with 10 mL of 0.5 M NaOH, then…

A: Solutions- Standard solution : 0.201 grams of acetylsalicylic acid was combined with 10 mL of 0.5 M…

Q: 1. Calculate the moles of KHP you titrated for each trial. (KHP is KHC8H4O4). MW = 204.23 g/mol.…

A: The balanced equation for the reaction between KHP and NaOH can be represented as:…

Q: A 1.00 liter solution contains 0.51 M ammonia and 0.39 M ammonium chloride. If 0.2 moles of…

A:

Q: Which of the following steps MUST be done prior to titration of an analyte? I. Prepare a…

A: Steps done prior titration.

Q: Can some one explain how benzoic acid is insoluble with water and also insoluble with 1m hcl? But is…

A: Benzoic acid consist of one benzene ring and one carboxylic group. Benzene ring makes benzoic acid…

Q: How would the results of an experiment change if a basic buffer was utilized instead of an acidic…

A: The results of an experiment would change if a basic buffer was used instead of an acidic buffer in…

Q: 1. Which of the following is the best primary standard for the standardization of NaOH? a. KHP b.…

A: (1) A main standard is a reagent that can be easily weighed and is sufficiently pure that it…

Q: Full Screen Accessibility Which of the following will show the greatest increase in solubility if 1…

A:

Q: 1.2 (i) pH Volume (mL) of 0.1 M NaOH m Above is the titration curve of a weak acid (200 mM acetic…

A:

Q: Write the reaction that takes place when H30*(ag) is added to ution containing H,PO4(aq) and H,PO4…

A:

Q: Table 4 Pease help me figure out what I did wrong for these calcauations for Volume of 0.100 M NaOH…

A: The objective of the question is to correct the calculations for the volume of 0.100 M NaOH used,…

Q: You can use scientific notation using "e". Example: 0.0010 = 1.0e-3 Primary Standard Used: Na2C03…

A: Balanced equation for the reaction of HCl(aq) with Na2CO3(aq) is: 2HCl(aq) + Na2CO3(aq) ----->…

Q: A student was given a white powdered solid unknown sample mixture made-up of sodium carbonate and…

A: Given that: Total mass of unknown sample mixture = 0.3721 g V1 = 10.00 mL, V2 = 2.00 mL meq of…

Q: Benzoic acid extracted from 123.16 g of sample required a 27.13 mL titration with 0.0792 M barium…

A:

Q: Consider the reaction of 60.5 mL of 0.310 M NaC7HsO2 with 50.0 mL of 0.245 M HBr. (Ka of HC7H5O2 =…

A: A buffer is a solution which resist any change in pH on adding a small amount of acid or base .   it…

Q: Do the following calculations:a) Calculate the experimental % hydrolysis for 1 M NaC2H3O2 and 1 M…

A: Salt hydrolysis refers to hydrolysis of an anion or cation (i.e. a part of salt) in presence of…

Q: You carry out the alkalinity titration of 100 mL water sample and find that it requires 12 ml of…

A: A numerical problem based on environmental pollution that is to be accomplished.

Q: An unknown sample containing moved alkal (NaOH, NaHCO or Na CO) was analyzed using the double flask…

A:

Q: A practitioner will make a titration curve. The practitioner pipetted 10 mL of 0.1 M HCl solution…

A: "Since you have asked multiple questions, we will solve the first question for you i.e  (HCl vs…

Q: If you added 5.0 mL of 2.0 M NAOH to 45.0 mL of pure water what would the resulting ApH of the…

A: 5.0 mL of 2.0 M of NaOH is added to 45.0 mL of pure water. We have to calculate the resulting…

Q: What is the percentage of total acid expressed as acetic acid in a sample of vinegar if 4.0g of…

A: A multiple choice question based on acid-base titration that is to be accomplished.

Q: 1. A 0.1250-g sample of pure (100%) of K2Cr2O7 was dissolve in 250-mL volumetric flask, and dilute…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: In the six runs indicated below 1.2 x 10 violet is used. RUN 1 2 3 4 BEAKER 1 M stock solution of…

A: we have proved that option A, D ,E ,C are false that means the correct option is option B.

Q: Which of the following steps MUST be done prior to titration of an analyte? I. Prepare a…

A: A multiple choice question based on quantitative analysis, which is to be accomplished.

Q: You need to prepare 100.0 mL of a pli 4.00 buffer solution using (0.100 M henzoic acid (pk, = 4.20)…

A:

Q: Prior to making buffer X, you need to prepare the requisite stock solutions.  Describe how you would…

A: The question is based on the concept of molarity.    it is defined as number of moles of solute…

Q: Determine the Ksp and identity of a sparingly soluble salt MF2.  He was given two portions of 25.00…

A: 1.    First portion of 25.00 mL saturated solution of MF2 is titrated with standard HNO3 solution.…

Q: A mixture of NaOH (M.wt = 40) and Na2CO3 (M.wt = 106) is titrated with 0.3 M HCl, requiring 30 mL…

A: The equations of titration are : For the titration using phenolphthalein indicator,…

Q: Generate a titration curve for 25.0 mL of 0.7233 M H;POs, with 1.256 M NAOH as the titrant, given…

A: The titration curve for the titration of 25.0 mL of 0.7233 M H3PO4 versus 1.256 M NaOH solution is…

Q: How many (a) millimoles, (b) milliequivalents, and (c) milliosmoles of calcium gluconate…

A: Millimoles, milliequivalents and milliosmoles are used in representing the amount of substance in…

Q: A pharmacist is conducting an analysis of 2.7 g sodium bicarbonate and titrated with 26.05 mL of…

A: The above problem is assay of sodium bicarbonate with Hydrochloric acid.

Q: You weigh out exactly 1.00 mg of benzoic acid and dissolve it in a mixture of 2.0 mL of diethyl…

A: Please be noted that it is the KD value which is the distribution coefficient but not the KP value.…

Q: explain how the result of a titration is affected if you titrate past the end point, calculate the…

A:

Q: If the same mass of Na2SO4 (MW: 142 g/mol) and K2SO4 (MW: 174 g/mol) were weighed and used for the…

A: The balanced equation for the formation of the precipitate, BaSO4(s) is: Ba2+(aq) + SO42-(aq)…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.