A weak acid HA has a pKa = 6.25. At what pH will [HA] = [A-] ?
6.25
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lifesaver
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15
Use the equilibria below for the triprotic acid for this question. (The â represents the equilibrium double arrow.) H3A â H+ + H2A- pKa1 = 2.00 H2A- â H+ + HA2- pKa2 = 6.00 HA2- â H+ + A3-
6.00
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15
Use the equilibria below for the triprotic acid for this question. (The â represents the equilibrium double arrow.) H3A â H+ + H2A- pKa1 = 2.00 H2A- â H+ + HA2- pKa2 = 6.00 HA2- â H+ + A3-
10.00
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rocket
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15
The following titration curve is the kind of curve expected for the titration of a ____ acid with a ____ base.
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15
A weak acid HA has a pKa = 4.00. At what pH will the concentration of HA be ten times larger than the concentration of A- in this solution?
3.0
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15
A weak acid HA has a pKa = 3.50. At what pH will the concentration of HA be 100 times larger than the concentration of A- in this solution?