February 24th - 0.1 Molar solution of acetic acid. Acid :...

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February 24 th , 2010 Leveling effect of Water -the strongest acid in water is H+ or H3O+ -the strongest base is OH- HNO3 is much stronger acid than H3O outside H2O HNO3 H3O + NO3 NH2 [strong base]+ H2O [acid] NH3 (aq) [weak base] + OH- Example problem: Type 1 Only 1 species is put into solution[Chapter 7] Type 2 Two species are put into solution AND they are conjugate pairs Typical type 1 What is the pH of a ___ M solution of ____ .
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Unformatted text preview: 0.1 Molar solution of acetic acid. Acid : HA HA <_> H+ + A-0.1 O O I-x +x +X C .1 x x x E Ka = [H+][A-] / [HA] 1.8E-5 = Ka = (x^2) / (0.1 x) Since Ka is small & the conc. Is reasonable that .1 x ~ = .1 Ka = x^2 / .1 X = 0.00134 M = H+-log (.00134) = 2.873 Can I use the assumption? If Ka is small <10E-4 AND the conc. Is reasonable >0.05 M What is the percent ionization of 0.10 M acetic acid solution?...
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February 24th - 0.1 Molar solution of acetic acid. Acid :...

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