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- What volume of 0.317 M KOH solution will be required to titrate 25.00 ml of 0.285 MHNO3?If a 10.0mL volumetric flask is used to prepare the dilution, what volume of 0.50 M cobalt (II) nitrate is needed to prepare a 0.15 M standard solution?If a 3g sample of zinc oxide, 95% ZnO, were treated with 50ml of 1.1230N sulfuric acid in the usual way, what volume of 0.9765N sodium Hydroxide would be required in the residual titration?
- if a 1.25g sample of magnesium oxide (98.9%) were titrated with 70ml of 1.04N of sulfuric acid, what volume of 1.15N sodium hydroxide would be required in the back titration?What does it mean to standardize the KMnO4 solution? In the titration, which substance is reduced and oxidized? What is the mole ratio of MnO4-/C2O42- in the chemical reaction in this experiment? What is the purpose of the 3 M H2SO4 solution? What is the purpose of the manganese (II) sulfate? Why is it necessary to titrate slowly in this experiment?Why is an aqueous solution of NaCl used to prepare the solutions for Runs 2–4 instead of deionized water?
- Why is phthalic acid soluble in water and what type of IMFs are involved in the solubility of it in water?2. Calculate the number of grams of oxalic acid dihydrate (M.W. = 126.1) necessary to react with 35 mL of the 0.1 M NaOH solution.What is the importance of non-aqueous titrations in pharmaceutical analysis?