Determine the iodine value of an unknown sample of oil weighing 0.21g if 26ml and 12 ml of 0.1100N of sodium thiosulfate are required for the blank and residual titration respectively

Q: One of the following statements is incorrect: Titration error is the difference between equivalence…

A: A titration is the process of determining the quantity of a substance A by adding measured…

Q: of the following statements is incorrect O A standard solution should react completely with the…

A: Incorrect statement is:

Q: A multivitamin sample has a label claim of 500 mg ascorbic acid (176.12 g/mol). According to quality…

A: Ascorbic acid (Vitamin C) is a monoprotic acid with formula HC6H7O6.  Hence the balanced equation…

Q: Determine the iodine value of the unknown sample weighing 0.25 g if 24.15 ml and 12ml of 0.1055 N…

A: Given that: Weight of the sample= 0.25 g. Volume of blank = 24.15 mL. Volume of sample = 12 mL.…

Q: 0.7980-g sample of chloride was titrated using the Fajans method and required 45.32 mL of 0.1046 M…

A: Given that: [AgNO3] = 0.1046M Volume = 45.32ml = 45.32ml×1L/1000ml = 0.04532 L Molarity = moles ÷…

Q: The molar absorptivities of the indicator weak acid HIn (Ka = 1.42 x 10-5) and its conjugate base…

A: The absorbance of the mixture of two species can be written as:   A=εHInbCHIn+εIn-bCIn-

Q: 12Electrodes of the first kind have poor precision The answer is either true or false 16Voltammetry…

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Q: Calculate the percentage mass of the possible alkaline component/s.

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Q: A multivitamin sample has a label claim of 500 mg ascorbic acid (176.12 g/mol). According to quality…

A: A question based on mole concept that is to be accomplished.

Q: One of the following statements is incorrect: O A primary standard should be highly pure, has…

A: Introduction: Primary standards are the compounds that are generally used to determine the unknown…

Q: Analyte X absorbs at region 300 – 450 nm while Titrant absorbs at region 400 – 550 nm and product…

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Q: 0.257600 grams was dissolved in acid and was diIuted to 250mL. From the sample, 100mL aliquot was…

A: The question is based on the concept of quantitative estimation . we have to calculate percentage…

Q: 5. 20 mL of tap water sample is taken in a conical flask and 1 mL of pH 10 buffer and 3 drops of…

A: Hard water is the water that contains dissolved Ca2+ and Mg2+ ions. These ions react with fatty…

Q: A multivitamin sample has a label claim of 500 mg ascorbic acid (176.12 g/mol). According to quality…

A: After 6 months - NaOH required was 22.48mL and 0.1101M. Number of moles of NaOH, n = Molarity *…

Q: The titration of 5.00 mL of 0.4949 M NH3 with 0.2250 M HNO3. Kb = 1.8×10–5. Fill out chart and list…

A: Since your question has multiple sub parts, we will solve only first three parts for you. If you…

Q: 10.0 mL sample of unknown sample containing Ca2* and Mg* titrated with 0.01 M EDTA. It need 15.0 mL…

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Q: Concentration sodium thiosulfate solution used: 0.056 mol L-1 ACCURATE TITRATION VOLUME OF SODIUM…

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Q: All of the following regarding Argentometric titration are correct except a. Chromate indicator is…

A: fajan method An adsorption indicator shows two different colour in adsorbed or desorbed from is…

Q: 20 In conductometric titration the titrant must be less concentrated then analyte. * 1 Point) True…

A: 20) The given statement is, In conductometric titration, the titrant must be less concentrated then…

Q: A titrant solution of KMnO was standardized with 0.2000 grams of Na2C2O4 and consumed 27.75 mL to…

A: Given: KMnO4 is standardised using 0.2000 g of Na2C2O4. And the volume of KMnO4 solution used =…

Q: pH=pKa, and the value for the pKa. 15.00 14.00 13.00 12.00 11.00 10.00 9.00 8.00 pH 7.00 6.00 5.00…

A: Given Data  Volume of base = 10.00mL Concentration of base = 0.50 M To determine the molarity of…

Q: B. Titration Data A 100 mL Kool-Aid solution was made: 0.3210 g of Kool-Aid powder was…

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Q: One of the following statements is incorrect: O Titration error is the difference between…

A: Out of the given statements , one statement is wrong . We have to select that incorrect statement.

Q: Molarity of calcium hydroxide = 0.0746 M Mass of solid acid = 252.5 milligrams Volume of acid…

A: 1.) For acid base titration , dissociation constant can be determined from the relation that  pKa =…

Q: Step 2: Phosphate buffer Monobasic (mM) Dibasic (mM) pH 50 5.37 40 10 6.08 30 20 6.48 20 30 6.83 10…

A: Solution :      Monobasic acids contain one replaceable hydrogen atom per acid molecule while…

Q: _and 2- Gravimetric analysis have two method. 3- In titration method can be calculated of known…

A: Molecular Weight: molecular weight can be evaluated from the individual weight of all the elements…

Q: Back titration is usually required when none of the choices the standard solution is volatile. the…

A: In volumetric analysis titration is one of the method. Back titration is also called indirect…

Q: A 25.00 mL sample of water, buffered at a pH of 10, is titrated with 0.008989 M EDTA using the…

A: The hardness in water can be calculated using EDTA which binds with metal ions like Ca and Mg.

Q: A multivitamin sample has a label claim of 500 mg ascorbic acid (176.12 g/mol). According to quality…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: The end point of the Zn2+-EDTA titration was observed after 17.50 mL of 0.0500 M EDTA solution was…

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Q: What factor affects the ‘strength’ of a buffer? Why was benzoic acid used as a solvent when making…

A: Firstly we have to tell about factor affecting the strength of a buffer solution. Ratio of…

Q: Which of listed methods belongs to complexometric titration? mercurimetry; thiocyanate-metry;…

A: Complexometric titration : this is the technique of volumetric analysis in which the soluble and…

Q: To prepare 250mL of 0.100 M H2SO4, a student uses graduated pipette and a 250mL volumetric flask…

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

Q: Data Sheet with Sample Results 1. Estimated equivalence point of HCl titration pH = 2. Estimated…

A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…

Q: 2,5 ml volume has taken from an “hypothetic” solution which includes (3+) Sb and (3+) Fe and at the…

A: Fe3+ ion is stable to KMnO4 solution so, only Sb3+ ion undergoes oxidation to Sb5+ ion. The chemical…

Q: One of the following statements is incorrect: A primary standard should be highly pure, has…

A: The question is based on the concept of chemical equilibrium. we have to identify the incorrect…

Q: 0.7980-g sample of chloride was titrated using the Fajans method and required 45.32 mL of 0.1046 M…

A: We have given that   0.7980g sample of chloride was titrated using the Fajans method and required…

Q: What is the result and discussion for experiment determination of Hardness of water EDTA titration

A: Hardness of water is mainly due to dissolved salts of calcium and magnesium, which makes it unfit…

Q: Write short notes on displacement titration with suitable example.

A: The displacement titration includes that an analyte displaces a reagent form a complex and the…

Q: A student recorded the following end-point volumes in an iodometric titration using starch…

A: Titration error is  -3.89 x 10-4  .

Q: 1. It is a reagent of known concentration used in titrations * analyte solution normal solution…

A: Titration is a method to determine the concentration of an unknown solution by using the solution of…

Q: For the complexiometric titration of Ca2 + ions in the shell of the egg sample weighing 62,576 g,…

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Q: Repeats of 12.64 mL samples of a 0.2937 M primary standard zinc ion solution were titrated with an…

A: Given that -  Volume of standard zinc ion Solution = 12.64 mL  Molarity of standard zinc ion…

Q: In volumetric titration of NazCO (analyte) with HCI (titrant), using pH sensitive indicator, to…

A: Indicator, is a substance which gives visible sign, by a colour change, of the presence or absence…

Q: Aside from repeating the experiment, search literature and suggest what can be done to remedy a…

A: Remedy for a sample that is ‘over-titrated'   1 - Over-titration is a state where there is more…

Q: 20 ml portion of a deep well water sample was diluted to 250 ml solution. a 50 ml aliquot of this…

A: The question is based on the concept of complexometric titration. We have to determine hardness by…

Q: Determination of water hardness using complexometric titration. Overtitration during…

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Q: Application (specific analysis) General Specific Method Primary Titrimetric Titrant Indicator End…

A: There are various method in inorganic chemistry to estimate the unknown concentration. Titration is…

Q: How many mg of ascorbic acid are present in the 3 month old sample? A 492.53 mg B 488.12 mg c)…

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