W23. Potassium hydrogen phthalate (KHCgHO4) is commonly usea oda i standardize NaOH solutions. The balanced equation...

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Answer 1

Answer #1

KHC8H4O4 + NaOH ----------------------> NaKC8H4O4 + H2O

no of moles = mass / molar mass

for KHC8H4O4 = 0.6042 g / 204.22 g/mol => 0.00295857 moles

1 mol KHC8H4O4 ----------------------> 1 mol NaOH

0.00295857 mol -------------------------->?

=>0.00295857 * 1 / 1 => 0.00295857 mol

molarity = moles / volume in liters

molarity = 0.00295857 mol / 0.02478 L

=>0.119393 M

answer => 0.12 M

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Answer 2

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