Q: 7) The solvent in KOH solution is
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Q: Why is blank titration necessary in the iodine value determination
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Q: calculate the number of moles of sodium thiosulphate (vi) needed to react with iodine liberated…
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Q: A. The sodium hydroxide solution was not mixed thoroughly after diluting with deionized water. B. A…
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Q: source of experimental error. a. A student obtains three Erlenmeyer flasks, and he washes and…
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Q: Titrant: It is the solution that is placed in the conical falsk :Select one True False
A: Titration It is the process of adding measure volume of acid or base of known concentration…
Q: Based on the graph, what is the pKa of vinegar?
A: The dissociation of an acid (HA) is shown below. The expression for dissociation constant (Ka) is…
Q: Q/ Why is iodine saturated with the least amount of sodium thiosulfate solution?
A: The elements are arranged based on their atomic number values in rows and columns (or groups). This…
Q: 10.00 mL of the Unknown Acid B with a concentration of 0.1205M was placed into an Erlenmeyer flask…
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Q: If your unknown produced no precipitate with ammonium sulfate, but the next two tests were positive,…
A: If your unknown produced no precipitate with ammonium sulfate, but the next two tests were positive,…
Q: The name of the apparatus used in salting out is Your answer
A: Salting-out is the effect when adding a salt to a solvent containing an organic solute reduces the…
Q: Describe what is done in a displacement titration and give an example.
A: In displacement titration a complex is formed as analyte displaces a reagent, and amount of…
Q: Convert the titrant into desire Totally convert analyte into de form Shou
A: We know that, Preoxidation is defined as it will oxidised in advance of other process. Prereduction…
Q: (3). Write short notes on displacement titration with suitable example.
A: Displacement titration also known as replacement titration is defined as the replacing of anion of…
Q: If the titer during the standardization procedure of HCI is 32.50 ml by using 0.2115 grams of sodium…
A: here we are required to find the percent error in the concentration of sodium carbonate
Q: Why must a boiling stone be added to a solution to be refluxed?
A: The boiling stone is added while refluxing the solution because -
Q: Explain how the reported solubility product of borax will be affected if some of the solid borax is…
A: Le chatlier’s principle- This principle helps to determine Effect of temperature on equilibrium of…
Q: .. Suppose you wanted to further purify the acidic or basic component of your mixture. What might be…
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Q: Define the term. Titration Error:
A: Titration error can be defined as the significant difference between the equivalence point and the…
Q: How would the calculated molar concentration of the analyte be affected if the burette is rinsed…
A: In laboratory while we use burette for titration,we should always rinse it with water at first and…
Q: How to find weight of HAc in original solution in grams?
A: Given: Concentration of acetic acid(HAc) = 0.5306 N Volume of the solution = 80mL
Q: What is the end point of colorimetry titration?
A: For determination of unknown quantity of a substance color observation is use in both cases of…
Q: 1. What is the role of chromate ions in chloride determination? 2. Why pH range is important in…
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: What is the graduated glass tube used to add the titrant (base) to the analyte (acid)?
A: 1) To identify the graduated glass tube which is used to add the titrant (base) to the analyte…
Q: 1. In this experiment we tested for the ammonium ion using a fresh sample of the unknown. Why was…
A: Test for ammonium ion: SPECIFIC TEST: NH4+ + OH- →NH3 + H2O collect this…
Q: An acid sample of unknown concentration is contained in a Erlenmeyer flask. Which technique below…
A: We have to tell which option is correct from given choices of options by telling Which technique…
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: Why do you need to swirl the flask constantly during the titrimetric analysis? a. To prevent the…
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Q: In the laboratory, what would you use for the following? To hold a burette and a pipette during a…
A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…
Q: What technique might be used to analyze an aliquot from a reaction mixture? Gas Chromatography…
A: An aliquot means very small quantity of substance. Gas Chromatography is powerful tool for…
Q: Why Should a pipette be rinsed with HCI and a burette with NaOH? prior to use of these solutions?
A: The above procedure is required for the strong acid and strong base titration and Pipette is rinsed…
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: When one would like to run an experiment with EDTA, sometimes it is necessary to do back titration.…
A: Sometimes when performing EDTA titration the metal ions block the indicator or metal EDTA complex…
Q: Suppose that a small portion of the sulfate precipitated as lead sulfate rather than as barium…
A: Answer - According to the question - Given - Small portion of the sulfate precipitated as lead…
Q: 2. What is the physical observation when the endpoint has been achieved during titration?
A: Endpoint: refers to the point at which the indicator changes color in an acid-base titration.
Q: What is the Sample, Analyte, Reagent added in excess, and Reagent used in an example of back…
A: Hii there, As there are multiple question posted. we are answering first question. If you need…
Q: Before you proceed with the titration proper, you must first determine the exact concentration of…
A: 3. Answer - The correct option is - (C) - standardization Explanation - According to the question -…
Q: 46. A multivitamin sample has a label claim of 500 mg ascorbic acid (176.12 g/mol). According to…
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Q: Explain the half drop titration technique
A: Titration is a laboratory method to determine the concentration of an unknown compound using the…
Q: Why should be solution of sodium bicarbonate be boiled during titration with HCI?
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Q: RECRYSTALLIZATION Principle/s Involved: What is the principle behind the process?
A: Recrystallization is a process of purification using proper solvent.
Q: Why use basic buffer solution in an experiment for hard water analysis?
A: Buffer solution is solution which resist the change in pH of solution.
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: What are some of the possible sources of error in aspirin acid base titration experiment
A: Titration is a process of determining the concentration of a solution (the analyte) with the help of…
Q: Use water to rinse the sides of the Erlenmeyer flask containing the analyte. It will dilute the…
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Q: If the absorbance of the serum sample is 0.28 times the absorbance value of the uric acid standard,…
A: Beer-Lambert's Law:- This law states that the amount of light absorbed by a substance dissolved in a…
Q: What is the acid/base ratio is important in the titrimetric process?
A: Titration It is the process of chemical analysis in which a known concentration of acid or base is…
Q: Solvent Isotonic Hypertonic Hypotonic What is Iodine used to detect? Describe the assay/test. What…
A: Solution- A homogeneous mixture of two or more substance is known as solution.
Q: 51. The substance being analyzed is the: a. Titrant b. Analyte Salt d. Indicator
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
What happens when a zwitterion is titrated with an acid?
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- The following glassware is used when we do titrimetric analysis. If the glassware is not fully dry when used (i.e., there is water left in the glassware), determine whether this will affect the results of the titration process. Give a brief explanation. a. Erlenmeyer flask (used during titration) b. Burette c. Pipet (used in transferring the sample) d. Volumetric flaskDiscuss the role of indicators for the titration procedure *Why do you need to swirl the flask constantly during the titrimetric analysis? a. To prevent the accumulation of phenolphthalein on the center of the solution b. To preserve the sample c. To distribute the titrant throughout the sample d. To look cool during the experiment
