Parameter

Trial 1

Trial 2

Trial 3

Mass of KHP (g)

0.202

0.212

0.200

Number of moles of KHP (mol)

9.89 x 10^-4

1.04 x 10^-3

9.79 x 10^-4

Number of moles a NaOH that can react the KHP (mol)

0.0029

0.0031

0.0030

Volume of titrant to reach the equivalence point (mL)

16.36

16.84

17.32

Concentration of NaOH solution (mol/L)

0.177

0.184

0.179

Average concentration of NaOH solution (mol/L)

  0.180