CHE-1102 Lecture Notes - Lecture 9: Ph, Lewis Acids And Bases, Conjugate Acid
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[oh-] = [moh] or [oh-] = 2[m(oh)2: weak acids - only slightly dissociated, ha + h2o h3o+ + a- Solve for x (qf or sc) x = [h3o+] ph = -log[h3o+: weak bases - only slightly dissociated, b + h2o hb+ + oh- Solve for x (qf or sc) x = [oh-] poh = -log[oh-] ph = 14. 00 - poh: basic salts - only slightly hydrolyzed, a- + h2o b + oh- Use ka of the conjugate acid to calculate kb. Solve for x using short cut x = [oh-] poh = -log[oh-] ph = 14. 00 poh: acidic salts - only slightly hydrolyzed, hb+ + h2o h3o+ + b. Use kb of the conjugate base to calculate ka. Solve for x using short cut x = [h3o+] ph = -log[h3o+: acid strength (highly polar bonds = stronger acids, bond polarity, bond strength h-a. Large, small charged cations (na+, k+, rb+ = neutral solutions)
