E. One important use of titration experiments is that they can be used to determ

Question

E. One important use of titration experiments is that they can be used to determine the exact cannot be numbers are concentration of solutions. The concentration of the NaOH solution prepared in partI rately calculated from molarity and dilution used to make up the solution. These accu t that well known, and NaOH contains reasonably pure and accurately measured; therefore, the concentration of the NaOH solution can be calculated from the titration data. impurities. However, the acids that were titrated are Calculate the concentration of your NaOH solution from each set of titration data (excluding that with methyl orange), then determine an average value for [OH-] in that solution. The definitions on the following page may be helpful in making these calculations. Show your calculation for titration #2 in the space below. # liters # moles H in KHP # moles # moles OH- added OH- added [OH- KHP 525.0-3 410-10-3 Titration 3.050-10- -3 Average

Explanation / Answer

One mole of KHP contains one mole of H+ that can react with one mole of sodium hydroxide, which contains one
mole of OH-.

So, moles of H+ in KHP = moles of KHP
.

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