Standardization of a Sodium Hydroxide Solution PDF

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Name: ___Alexandria Frascone__________________________________

Standardization of NaOH – Data Sheet Data Potassium acid phthalate Trial 1

Trial 2

Trial 3

1.001 g

1.003 g

1.001 g

Trial 4

Trial 5

Paper + KHP Wt. of paper (g) Wt. of KHP in flask

NaOH Solution Trial 1

Trial 2

Trial 3

Final buret reading (ml)

32.01 mL

34.56 mL

34.09 mL

Initial buret reading (ml)

10.12 mL

13.21 mL

11.30 mL

Volume used

21.89 mL

21.35 mL

22.79 mL

Ratio wt. KHP/vol. NaOH

1.001 / 21.89 = 0.04573 g/ml

1.003 / 21.35 = 0.04698 g/ml

1.001 / 22.79= 0.04392 g/ml

Trial 4

Trial 5

Calculations Trial 1 Molarity (M)

1000 x 1.001 / 204.23 x 21.89 = 0.2239 M

Trial 2 1000 x 1.003 / 204.23 x 21.35 = 0.2300 M

Average molarity: __0.2230 M___________ 0.2239 + 0.2300 + 0.215 / 3 = 0.2230 M

Trial 3 1000 x 1.001 / 204.23 x 22.79 = 0.2151 M

Trial 4

Trial 5

4|StandardizingNaOH...