Consider the titration of 1000 ml of 0100 m h2nnh2 kb 30, Ask an Expert

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Consider the titration of 100.0 mL of 0.100 M H2NNH2 (Kb = 3.0 10-6) by 0.200 M HNO3. Calculate the pH of the resulting solution after 100.0 mL of HNO3 have been added. I know the pH is 1.301029996 I don't know how many significant figures to go to. Please give the answer in the correct number of sig figs. (Hint: I have tried 1, 1.3, and 1.30. None of them are correct.)

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