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- (9.29 × 105/8)-20.81 = with correct sig figs0.1500 g of an unknown sample was passed through a column of Amberlite IR-120(+) resin and titrated with 0.2050 M NaOH. If 9.75 mL of titrant was required to reach phenolphthalein endpoint, what is the molecular weight of the unknown substance?All of the following criteria must be met for a titrimetric analysis to be feasible EXCEPT: Select one: a. Reaction between the standard and analyte must be known. b. There should be a substance for endpoint detection c. Reaction must proceed quantitatively to completion. d. Reaction between the reactants must be slow.
- What makes bromocresol green and phenolphthalein suitable for the double-indicator process?Why should be solution of sodium bicarbonate be boiled during titration with HCI?What is titration and ion chromatography? what is the difference between the two of them? which is much more effiecient in doing their task?