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  3. the recommended dose of quinine is 0.800 g/kg. if

The recommended dose of quinine is 0.800 g/kg. If we assume the density is 1 g/ml...

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Chemistry

The recommended dose of quinine is 0.800 g/kg. If we assume thedensity is 1 g/ml what is the ph of this solution? the molar massof quinine is 324.412. If 100 ml of this solution is titrated witha solution of 0.010 M HCL how many ml of HCL are required to reachthe first equivalence point? what is the ph there? What is the PHwhen 32 ML of HCL have been added? what is the ph at the secondequivalence point? what species of quinine is predominant at a phof 2.5(in the stomach)? and 7.4 (in the blood)

Kb1= 1.0x10-6

Kb2= 1.58x10-10

Answer & Explanation Solved by verified expert
4.1 Ratings (667 Votes)
Welcome to Aula Ya QAAssuming density of 1 gml concentration of the solution will be0800 g L We calculate the molar concentration from thisconcentrationM 0800 g 324412 gmol1 1L 2466 x103 MNo we write the hydrolysis reaction for a baseSince Quinine has two values of Kb we pick the larger orbigger Kb because this will be the first ionization for the baseAt equilibrium we can find the concentrations of each of them andthe pH by assuming that the weak base represented by Bdissociates in an X amount so there will be X mol of Conjugatedacid BH and X mol of OHSolving for X we obtainSince the base is a very weak base    See Answer
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