The best indicator in redox titration are those which udergoes Redox reaction independently to the acting sepcies that give distinct color transformation. O True O False
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- A 0.4671 g sample containg NaHCO₃(Mwt=84.01mg/mmol) was dissolved and titrated with 0.1067 M HCl requiring 40.72 ml, find the percentage of NaHCO₃, in the sampleSample containing arsenic weighing 0.800 are titrated with a standard iodine soluton. what should be the normality of the iodine in order that each ml of titrant represents 1/2% As2O3 in the sample (Answer: 0.0809 N show full solution please)A vinegar sample of 28 mL was diluted with distilled water to a 250-mL volume. 25 mL portion ofthis solution was directly titrated with standard 0.01 mol/L NaH solution. The consumption was foundas 27.1 mL. Find the concentration (mol/L) of acetic acid in vinegar sample.
- What weight of sample should be taken for analysis sos that the volume of 0.1074N NaOH used for titration equals the percentage of potassium acid phthalate (KHC8H4O4) in the sample (Answer 2,193 g)The concentration of a perchloric acid solution was established by titration against primary standard sodium carbonate. A 0.2068-g sample of sodium carbonate required 36.31 to reach the end point. Write the over-all reaction for the titration and calculate forthe molarity of the acid.An unknown sample weighing 0.2583g is titration to the end point with 47.28mL of a 0.10M AgNO3 solution. What is the weight percent of Cl- in the sample?
- Give typed solution only. 34.0 mL of 1.34 M hydroiodic acid is added to 39.1 mL of calcium hydroxide, and the resulting solution is found to be acidic. 25.8 mL of 0.899 M sodium hydroxide is required to reach neutrality. What is the molarity of the original calcium hydroxide solution?In a gravimetric determination of a soluble sulfate the data gathered is presented (see attachment). Calculate the amount of BaCl2 needed fortitration.What species are present in a solution giving off a pure blue endpoint in a hard water sample containing an EBT indicator (In) with an EDTA titrant? a. HIn²⁻, CaY²⁻, MgY²⁻ b. HIn²⁻, MgIn⁻, CaY²⁻, MgY²⁻, CaIn⁻ c. HIn²⁻, MgIn⁻ d. HIn²⁻, MgIn⁻, CaY²⁻
- You are the manager of a chemical stockroom, and find a bottle containing approximately one liter of aclear and colorless solution of unknown identity and concentration. Your only clue to its identity is thatit was found between bottles of silver fluoride and sodium fluoride, so it is likely an aqueous solution ofone of those two compounds. You will need to develop a procedure to determine the following:a) The identity of the unknown solutionb) The concentration of the unknown solutionWrite out a precise procedure, which includes all glassware, reagents, and steps. You will also need towrite the calculations that you would need to determine the concentration of the solution. Assume thatyou have access to any reagent you might need. You may also assume that you have access to commonlaboratory equipment. You observed some examples of laboratory equipment within the VirtualChemistry Laboratory simulations. You may visit the virtual lab at chemcollective.org to refamiliarizeyourself with…Need solution urgently 125mL of an alkaline water sample containing 128 ppm carbonate and 40ppm hydroxide in terms of CaCO_(3) equivalent its titrated against 0.20NHCl using methyl orange as the indicator.What will be the titre value (in ml unit)?I'm having issues with the second part of this probem after the addition of 5.00 mL of titrant. I have attached a picture of the problem.