Answer Happy

Calculate the ['OH] and pH of a 0.003 M solution of the weak acid nitrous acid (HNO2). The Ka for the nitrous acid is 2.13 x 10-5. O (OH) = 7.2 x 10-8. PH=10.32 pH 0 [OH] = 2.31 x 108 pH=343 0 [OH] = 3.95 x 10-11, pH=3.60 O [OH] = 5.23 x 10-4 pH=1.32