CHEM 123 Lecture Notes - Lecture 11: Conjugate Acid, Equilibrium Constant, Sodium Hydroxide
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Cpsc 121 lecture #3 representing values pt. Topics included: solving for q2 given q1, t1, and t2 while h is constant. (van hoff, acid-base review, ice tables. Week 4: acid-base review + introduction to kinetics. Formula: given q1, t1, and t2 while h is constant, find q2: derived from van hoff equation: ln(q1/q2) = (- ho/r)(1/t1-1/t2) Will talk more about what ph is later: definition: ph means -log([h+]). In-class example: adding 10-10m hcl to water gives a ph of about 7 since then hcl is competing with water (more specifically, water that is acting as a base) for hydrogens. Since hcl is an acid, it should have a ph < 7, and -log(10-10) is 10, which is greater than 7. Thus we know that if the concentration of hydrogens in the water is so low that it falls out of the acidic range: a- + h2o ha + oh-
