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September 19, 2014

Homework Help: acid-base titrations

Posted by natash on Monday, April 21, 2008 at 10:22pm.

For each of the following circumstances, indicate whether the calculated molarity of NaOH would be lower, higher or unaffected. Explain your answer in each case.

a.the inside of the pipet used to transfer the standard HCI solution was wet with water.
b.You added 40mL of water to the titration flask rather than 25mL
c.The buret, wet with water, was not rinsed with NaOH solution before filling the buret with NaOH solution.
d.Five drops of phenolphthalein were added to the solution to be titrated rather than 3 drops.

arent they all supposed to be affected but the last one?

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