Iodometric titration of vitamic C with sodium thiosulfate Why was the known excess of iodine generated using iodate rather than weighing out a known excess of iodine?
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Iodometric titration of vitamic C with sodium thiosulfate
Why was the known excess of iodine generated using iodate rather than weighing out a known excess of iodine?
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- The Kjeldahl procedure was used to analyze 244 µL of a solution containing 38.1 mg protein/mL. The liberated NH3 was collected in 5.00 mL of 0.0375 M HCl and the remaining acid required 5.98 mL of 0.00998 M NaOH for complete titration. What is the weight percent of nitrogen in the protein?The Kjeldahl procedure was used to analyze 256 L 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 0 M NaOH for complete titration.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%
- volumetric or graduated piptte, Which one of them is commonly used for Titration and reagent and which one is more accurate, why?The back titration of HCl with NaOh in the Kjeldahl Method ensures thr reaction of NH3 and HCl is stoochiometric TRUE OR FALSE6. The quantitative determination of pyridoxine hydrochloride can be carried out by methods: A. Complexometry B. Argentometry C. Alkalimetry D. Acid-base titration in a protogenic solvent medium E. Acid-base titration in a profile solvent medium
- List the advantages and disadvantages of a potentiometric titration relative to a direct potentiometricmeasurement.Why is the titration done with vigorous swirling?If all the N in 10.0 mmols urea, CO(NH2)2, is converted to NH4HSO4, and if with excess NaOH the NH3 is evolved and caught in 50.0 mL of HCl (1.00 mL ≈ 0.03000 g CaCO3), what volume of NaOH (1.00 mL ≈ 0.3465 g H2C2O4.2H2O) would be required for complete titration?