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The moles of MnO4- can be calculated by multiplying the volume of MnO4- required to reach the endpoint multiplied by the molarity of the MnO4- solution. What are the moles of MnO4- used in the titration?

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Answer:

See explanation

Explanation:

The molarity of the KMnO4 solution= 0.0815 M

For the first trial;

number of moles = 30.44/1000 *  0.0815  = 2.48 * 10^-3 moles

For the second trial;

number of moles = 31.24/1000 *  0.0815  = 2.55 * 10^-3 moles

For the third trial;

number of moles = 31.89/1000 *  0.0815  = 2.6 * 10^-3 moles

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