CH 16_student_6_per_page_sp07

Hpo42 and oh as the acids 0 0 0 4 hpo42 and h2o as a

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: acids 0% 0% 0% 4. HPO42- and H2O as a conjugate pair 0% Slide 11 of 48 CHM 25 SP07 Slide 12 of 48 CHM 25 SP07 CHM 25 SP07 2 The Self-Ionization of Water and the pH Scale Ion Product of Water base acid conjugate conjugate base acid H2O + H2O H3O+ + OH- Kc= [H3O+][OH-] [H2O][H2O] KW= Kc[H2O][H2O] = [H3O+][OH-] = 1.0×10-14 Slide 13 of 48 CHM 25 SP07 Slide 14 of 48 CHM 25 SP07 pH and pOH ♦ The potential of the hydrogen ion was defined in 1909 as the negative of the logarithm of [H+]. pH = -log[H3O+] pOH = -log[OH-] pH and pOH Scales KW = [H3O+][OH-]= 1.0×10-14 -logKW = -log[H3O+]-log[OH-]= -log(1.0×10-14) pKW = pH + pOH= -(-14) pKW = pH + pOH = 14 Slide 15 of 48 CHM 25 SP07 Slide 16 of 48 CHM 25 SP07 You add 0.0010 mol of NaOH to 1.0 L of NaOH to pure water. Calcu...
View Full Document

This note was uploaded on 10/24/2009 for the course CHEM 025 taught by Professor X during the Spring '06 term at Lehigh University .

Ask a homework question - tutors are online