Answer:
59.97%
Explanation:
The equation for the reaction of KPH with NaOH can be given as:
KHC8H4O4 + NaOH→ KNaC8H4O4 + H2O
KHP + NaOH → KNaP +H2O
To get the moles of NaOH.
Moles of NaOH = 0.0350L NaOH×0.050 mol NaOH/1L NaOH
=0.00175 mol NaOH
To get the moles of KHP neutralized by the NaOH.
Moles of KHP=0.00175 mol NaOH × 1 mol KHP/1mol NaOH
=0.00175 mol KHP
we can then calculate the mass of the KHP.
Mass=0.00175 mol KHP × 204.22 g KHP/1mol KHP
=0.3574 grams of KHP
To calculate the purity of the KHP.
Purity=(mass of pure KHP/mass of impure KHP)×100%
=(0.3574g/0.596g)×100%
=59.97%
