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
Oops!
Check
Okay!
Check
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
Oops!
Check
Okay!
Check
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
Oops!
Check
Okay!
Check
15
The following titration curve is the kind of curve expected for the titration of a ____ acid with a ____ base.
Oops!
Show
Check
Okay!
Check
trap
No points!
Oops!
rocket
Go to first place!
Okay!
fairy
Take points!
5
10
15
20
25
banana
Go to last place!
Oops!
15
A weak acid HA has a pKa = 6.25. At what pH will [HA] = [A-] ?
6.25
Oops!
Check
Okay!
Check
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?
