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During the titration of a particular acid, the PH changes from 7.0 to 9.0 with the...

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Chemistry

During the titration of a particular acid, the PH changes from7.0 to 9.0 with the addition of 0.01mL of base. An indicator wasused that had KI= 1.0x10-8. Calculate the ratio of basic to acidicforms of the indicators before and after the last 0.01mL of basewas added. Use the result of your calculation to explain why thiswould or would not be a good indicator for this titration comparedto phenolpthhalein.

a. I got PH change, then need to multply by 0.01ml of base. Butwhy? What is that number called?

b. Need to calculate ratio of basic to acidic forms of theindicator before and after the last 0.01ml of base was added. Ineed precise steps of calculation with explainations.

c. How can I use my calculation to explain that the indicatorused is good or bad for the experiment? Pleas explain.

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