A. Calibration of pH probe (mark with check) B. Titration of HCI 1. M of NaOH (from bottle): 2. Volume of HCI: 25 0.100 mL = == pH = 4.0 D pH = 7.0 E pH=10.0 3. moles of HCI (MHCI X VHCI, in L) = 4. Volume of NaOH at equivalence point: M 0, 025 L 2.5 moles 0.1/75 mL = L 5. M of NaOH (experimental) at equivalence point (moles NaOH = moles HCl(1/VolNaOH) = 6. pH at equivalence point: Volume NaOH (mL) pH reading Volume NaOH (mL) pH reading Volume NaOH (mL) pH reading 0.00 l 1.00 1.60 2.00 اما ١٠ 16.00 2.0 26.50 10.15 17.00 2.08 27.00 0.97 18.00 2.13 27.50 11.15 3.00 42 19.00 2,20 28.00 11.24 4.00 20.00 1.64 2.27 28.50 1.34 5.00 20.50 2.32 29.00 11.42 6.00 1.69 21.00 2.31 29.00 7.00 8.00 1.71 11:72 21.50 2.43 30.00 11.53 22.00 31.00 2.51 9.00 1.76 22.50 2.59 32.00 11.66 10.00 1.78 23.00 2.7 34.00 11.79 11.00 81 23.50 2.81 36.00 11.86 12.00 11.85 24.00 2.99 38.00 11.94 13 42.50 1.88 24.50 3.29 40.00 12.00 13.00 1.92 25.00 4.30 42.00 12.03 14.00 1.97 25.50 7,21 45.00 12,10 15.00 2.00 26.00 0.17 50.00 127

A. Calibration of pH probe (mark with check) B. Titration of HCI 1. M of NaOH (from bottle): 2. Volume of HCI: 25 0.100 mL = == pH = 4.0 D pH = 7.0 E pH=10.0 3. moles of HCI (MHCI X VHCI, in L) = 4. Volume of NaOH at equivalence point: M 0, 025 L 2.5 moles 0.1/75 mL = L 5. M of NaOH (experimental) at equivalence point (moles NaOH = moles HCl(1/VolNaOH) = 6. pH at equivalence point: Volume NaOH (mL) pH reading Volume NaOH (mL) pH reading Volume NaOH (mL) pH reading 0.00 l 1.00 1.60 2.00 اما ١٠ 16.00 2.0 26.50 10.15 17.00 2.08 27.00 0.97 18.00 2.13 27.50 11.15 3.00 42 19.00 2,20 28.00 11.24 4.00 20.00 1.64 2.27 28.50 1.34 5.00 20.50 2.32 29.00 11.42 6.00 1.69 21.00 2.31 29.00 7.00 8.00 1.71 11:72 21.50 2.43 30.00 11.53 22.00 31.00 2.51 9.00 1.76 22.50 2.59 32.00 11.66 10.00 1.78 23.00 2.7 34.00 11.79 11.00 81 23.50 2.81 36.00 11.86 12.00 11.85 24.00 2.99 38.00 11.94 13 42.50 1.88 24.50 3.29 40.00 12.00 13.00 1.92 25.00 4.30 42.00 12.03 14.00 1.97 25.50 7,21 45.00 12,10 15.00 2.00 26.00 0.17 50.00 127

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter9: Complexometric And Precipitation Titrations

Section: Chapter Questions

Problem 15P

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