Does this type of titration give clues about the source of the acids present?

 

Could this technique (indicator titration) determine if a lake or stream is affected by acid rain? For example, would this technique allow you to say if the lake or stream was acidified from local industrial facility runoff versus acid rain? Does this type of titratin give clues about the source of the acids present?

Examine these titration curves. Label each one with a letter A,B, or C, to indicate the type of titration occurring.

Your choices are: A. weak base titrated with strong acid B. Weakacid titrated with strong base; C. Strong acid titrated with strongbase;

Under each figure, state HOW what feature(s) is characteristicof the type of titration you chose.

Match each type of titration to its pH at the equivalence point for solutions at 25 ∘C.