# Acid/Base Indicator [closed]

I'm not sure how the concept and math work on this problem. Can someone show me how you can get the answer, both conceptually and using math?

## closed as off-topic by Poutnik, user55119, Mithoron, Buck Thorn, Jon CusterJun 24 at 22:19

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You can look at the question this way: when we have a strong acid/strong base titration, at the equivalence point we would end up with a neutral solution (the $$\mathrm{pH}$$ would be ~$$7$$).
If we had a weak acid/strong base titration, at the equivalence point we would end up with $$\mathrm{pH}$$ above 7 (basic solution has $$\mathrm{pH}$$ between $$8-10$$).
If we had a weak base/strong acid titration, we would end up with an acidic solution with $$\mathrm{pH}$$ $$4-6$$)