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Would it be better to use an unknown acid sample of a size that should require 10.00 milliliters or one that would require 15.00 milliliters of titrant? Explain.

I have been thinking about this question... And I don't believe it matters what measurement of milliliters is required... As long as you reach the end-point of the unknown acid during titration. Correct?

  • Chemistry -

    As long as one reads the buret exactly correctly your answer is ok. However, we can't do that. The best we can read the buret is to the nearest 0.02 mL. 0.02 mL out of 10.00 mL is 0.2% (0.02/10)*100. The same error out of 15.00 is (0.02/15)*100 * 100 = 0.13%. Actually, you read the buret twice, once before the titration and once at the end so these would be doubled. I always felt I could read the buret at the zero mark flawlessly and I NEVER started a titration at any other point.

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