A solution containing Mg2+ was buffered to pH 9.81 and titrated with EDTA. Eriochrome black T, with p?a1 = 6.3 and p?a2 = 11.6 was used as the indicator. It is a diprotic acid, H2E What is the fraction of the predominant form of eriochrome black T in solution at this pH? (To answer this, report the alpha fraction of the indicator’s most prevalent species at this pH)

Q: A 50.0 mt of basic solute (K, 158 x 10 ) is titrated with a 25.0 ml of 0.100 M HCI solution. Which…

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Q: Given a theoretical acid, HA, with a pKa of 6.52. Calculate the pH of 30.0mL of 0.400M HA, when it…

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Q: Which one of the following indicators would be best to use when titrating 0.1M morphine (Kb = 1.6 ×…

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Q: Based on the tritration curves shown below, what's the pKa of the weak acid being titrated? 14.00 12…

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Q: A student needs to prepare a buffer solution with a pH of 5.26. Assuming a pKa of 4.73, how many mL…

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