25Dec/08Off
Concentration Add
Concentration Add
What happens to the concentration of an acid if you add too much base?
Such that the concentration of a phenolphthalein indication turns bright pink? Does this mean that the acid has been completely neutralized and that the concentration is zero? Or is there still some acid left in the mixture?
So does this mean that the acid is neutralized, yet there are still H+ ions in the mixture?
HA + BOH --> H2O + BA
When the phenolphthalein turns bright pink, the acid has been totally neutralized and the base is in excess.
In water solution you always have this equilibrium-
2H2O <--> H3O+ + OH-
This means you always have some H3O+ ions even in a strongly basic solution.
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