Question: Problem 3. A 200mL DI water with an initial pH of 7 will be acidified using standard phosphoric acid (H3PO4) with a molarity of 104mole/L.

Problem 3. A 200mL DI water with an initial pH of

Problem 3. A 200mL DI water with an initial pH of 7 will be acidified using standard phosphoric acid (H3PO4) with a molarity of 104mole/L. It is assumed that the standard phosphoric acid dissociates in DI water according to the following reaction: H3PO4HPO42+2H+ If 0.1mL of above standard phosphoric acid (H3PO4) is added to this 200mL DI water, what will be the final pH of the mixed solution. (20p)

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