strong acid titration - 9887596.xls conc H+ mL of H+mmol H+...

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Unformatted text preview: 9887596.xls conc H+ mL of H+mmol H+ conc OH0.01 50 0 0.5 Kw 1.00E-14 endpoint 500 mmol H+ combined % titrated left total ml 0.00% 0.5 50 10.00% 0.45 100 25.00% 0.38 175 50.00% 0.25 300 75.00% 0.13 425 90.00% 0.05 500 99.00% 0.01 545 99.75% 0 548.75 100.00% 0 550 100.25% 0 551.25 101.00% -0.01 555 110.00% -0.05 600 150.00% -0.25 800 200.00% -0.5 1050 [OH-] 1.00E-12 2.22E-12 4.67E-12 1.20E-11 3.40E-11 1.00E-10 1.09E-09 4.39E-09 1.00E-07 2.27E-06 9.01E-06 8.33E-05 3.13E-04 4.76E-04 [H+] 1.00E-02 4.50E-03 2.14E-03 8.33E-04 2.94E-04 1.00E-04 9.17E-06 2.28E-06 1.00E-07 4.41E-09 1.11E-09 1.20E-10 3.20E-11 2.10E-11 mL OHadded 0 50 125 250 375 450 495 498.75 500 501.25 505 550 750 1000 pH 2.00 2.35 2.67 3.08 3.53 4.00 5.04 5.64 7.00 8.36 8.95 9.92 10.49 10.68 Note: You can change the boldface blue values above to modify the pH curve. Note that there are limits to the way this spreadsheet solves. The concentrations need to be of reasonable size and not too small. Note also that the pH at the equivalence point (100%) for all monoprotic strong acids titrated with strong bases is always 7.00. 11 11 10 10 this is for the pH=7 line for reference 9 0 7 1000 7 9 8 8 7 7 6 6 5 5 4 4 3 3 2 2 0 200 400 Column H 600 800 1000 Page 1 ...
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This note was uploaded on 11/02/2008 for the course CH 301 taught by Professor Fakhreddine/lyon during the Fall '07 term at University of Texas at Austin.

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