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October 1, 2014

Homework Help: Chemistry(Please help, thank you!)

Posted by Hannah on Monday, October 24, 2011 at 8:25pm.

For a chemistry lab the experiment was to carry out an acid-base titration to determine the exact concentration of a sodium hydroxide solution.

Two trials were completed and the data collected was: mass of weighing paper, mass of weighing paper + KHP, mass of KHP, initial buret reading, final buret reading, and volume of NaOH.

The molecular weight of KHP is 204.44 grams/mol.

I need to find the number of moles of KHP, the number of moles of NaOH and the concentration of NaOH but i am not sure how to do this. Please help,thank you!!

I know that these questions were already answered but I wanted to see if my calculations were correct.

For my first trial KHP was 1.00g and for the second trial it was the same. So to fin moles of KHP i need to do grams/molar mass so would it be
204.44 g/mol X 1/1g = 204.44 g/mol?

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