Answer to Question #202762 in General Chemistry for Ra Rayo

Question #202762

A 250.0-mg sample of an organic weak acid is dissolved in an appropriate solvent and titrated with 0.0556 M NaOH, requiring 32.58 mL to reach the end point. Determine the compound’s equivalent weight.


1
Expert's answer
2021-06-10T03:32:28-0400

Moles of titrant

The moles of NaOH needed to reach the end point are:

moles of NaOH


Wt. of analyte=250 X10-3 g


This gives an equivalent weight of analyte:


E .W. = (g analyte/mole titrant)


=

= g/mol


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