1. Very pure silver nitrate standard reagent requires standardization with primary standard NaCl or KCl 2. Dicholorofluorosceine is the anionic dye that imparts positive charge particle on the precipitate formed on Fajan's titration. 3. To calculate the analyte in Fajan's titration, the equation needed is mol chloride ion = mol AgNO3 - mol KSCN Answer with true or false.

1. Very pure silver nitrate standard reagent requires standardization with primary standard NaCl or KCl 2. Dicholorofluorosceine is the anionic dye that imparts positive charge particle on the precipitate formed on Fajan's titration. 3. To calculate the analyte in Fajan's titration, the equation needed is mol chloride ion = mol AgNO3 - mol KSCN Answer with true or false.

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter10: Potentiometry And Redox Titrations

Section: Chapter Questions

Problem 8P

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A suitable target for the titration is 30.0 cm3 of 0.025 moldm-3 Br2(aq) Justify why a much smaller target titre would not be appropriate Calculate the amount in moles of bromine in the target titer Justification? calculate a suitable massof alive oil to transfer to the volumetric flask using your answer to of above question and the structure of Y Assume that the olive oil contains 85/- of Y by mass (If you were unable to calculate the amount of bromine in the target titer,you should assume it is 6.25×10^-8 mol .this in not the correct amount)
After preparing 500 mL of 0.1019 M NaOH solution, the cap is left open and it absorbs 0.652 g CO2. With this solution, Calculate the relative carbonate error in acetic acid titration besides the phenol phthalate indicator.
volumetric or graduated piptte, Which one of them is commonly used for Titration and reagent and which one is more accurate, why?
In the procedure below for a weak diprotic acid titation experiment what are the independent, dependent, and controlled variables? Prepare your Buret• Condition a 50 mL buret (2x with DI H2O followed by 2x standardized NaOH)• Fill the buret with the standardized NaOH close to but not exactly 0.00 mL Prepare Your Analyte • Your analyte will need to be placed in a 250 mL beaker and should contain thefollowing:*0.5 – 0.75 g KHP** About 100 mL DI water* Magnetic stir bar• Once all contents are in the 250 mL beaker, stir for at least 5 minutes to dissolve. Ifneeded, add a bit more water.* For unknown diprotic acids, use the mass provided by the instructorNext Run the Titration (note you will need to run the titration several times for data collection so you are able to use the average molar mass to find the unknown diaprotic acid).
true or false 1.,Carbonic acid, as a contaminant in the assay of sodium bicarbonate, may render the end point to be yellow. 2,.To have a balanced equation in the assay of sodium bicarbonate, the titrant should have a coefficient of one and the sulfate salt of sodium produced should have a coefficient of three. 3.When a weak alkali is titrated with strong acid, the indicator used is methyl red.4 4.Sodium bicarbonate is considered as the primary standard in its own assay. 5.When a strong alkali is titrated with a strong acid, phenolphthalein may be used.
In which cases are the wet Electorstatic Precipitators used?
The Kjedahl procedure was used to analyze 256 µL of a solution containing 37.9 mg protein/mL. The liberated NH3 was collected in 5.00 mL of 0.033 6 M HCl, and the remaining acid required 6.34 mL of 0.010 M NaOH for complete titration. What is the weight percent of nitrogen in the protein? wt%
A sample is known to contain about 20% soda ash. What sample size should be taken for analysis, if it is to be dissolved into a 50 mL volumetric flask, with 10 mL aliquots analyzed, if it is desired that the analysis consume a total of 40 mL 0.10 M HCl with 10 mL of 0.10 M NaOH used in the back-titration, after boiling.
I did an experiment called Potentiometric Analyses where we titrate NaOH with a solid unknown weak acid. Our group was told that our weak acid is diprotic. Mass of dry, solid acid = .155g Molar concentration of NaOH (mol/L)= 0.100 Buret reading of NaOH, initial (mL)= 50 mL Buret reading NaOH at stocichiometric point, final (mL)= 22.1 mL Volume of NaOH dispensed (mL) 27.9 mL Moles of NaOH to stoichiometric point (mol) : _____________ (I think the above answer would be 2.79 x 10-2? if yes then skip) Moles of acid (mol) _____________ Molar mass of acid (g/mol) __________ Note: In the book it says for a diprotic acid, 2 mol of OH-, neutralizes one mole of acid.
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why is it difficult to find the Ksp value for Mg(OH)2 during titration, compared to Ca(OH)
A neutralization titration was performed to determine the benzoic acid (C6H5COOH) in a 500 mL sample. In order to prepare the titrant, 5 grams of NaOH was weighed and dissolved in 1 L of distilled water. 10 mL of the sample was titrated with the NaOH solution after adding an appropriate indicator to the erlenmeyer. Four trials were done and 2.5 mL, 2.7 mL, 2.6 mL and 2.4 mL of NaOH were consumed. What is the mass of benzoic acid as gram in the sample. (C:12 g/mol, H:1 g/mol, O:16 g/mol, Na: 23 g/mol)