Asked by mary

A sample of potassium hydrogen oxalate, KHC2O4, weighing 0.717 g, was dissolved in water and titrated with 18.47 mL of an NaOH solution. Calculate the molarity of the NaOH solution.

Answers

Answered by Devron
First, determine the molarity of KHC2O4:

0.717g*(1 mol/128.12g)=moles of KHC2O4

18.47 mL=0.01847L

Molarity of KHC2O4=moles of KHC2O4/0.01847L

The reaction is a 1 mole to 1 mole reaction. Therefore, moles of KHC2O4=moles of NaOH.

So, Molarity of KHC2O4=Molarity of NaOH

***Answer contains three significant figures.
Answered by Marion
0.185
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