If you know pH, it's easy to calculate pOH because pH + pOH = 14. Sometimes you need to calculate pOH from the hydroxide ion concentration [OH-]. You'll need a calculator here, using the equation pOH = -log[OH-]. Acids, Bases, pH and pOH There are several ways to define acids ...
The autoionization of water is discussed and how temperature affects this process. A variety of problem types are covered including calculations of pH, pOH, [OH-], and [H+] for both strong and weak acids and bases. Aqueous salt solutions are classified as acids and bases and the multi-...
Chemistry: “Acids and bases. Calculating pH. Titrations”. Acids and bases. Calculating pH and pOH. Water autoionization; water ion-product constant (Kw). Acid dissociation constant (Ka). Buffer solutions; Henderson-Hasselbach equation. Titrations; equivalence point; half-equivalence point video ...
14pH=+pOHEquilibriumConstants [A-]Ka(weakacid) pHpKa=+log [HA]Kb(weakbase) [HB+]Kw(water) pOHpKb=+log [B]Kp(gaspressure) pKa=-logKa,pKb=-logKbKc(molarconcentrations) Dn KpKc(RT), whereDnmolesproductgas=-molesreactantgasSstandardentropy Hstandardenthalpy THERMOCHEMISTRY/KINETICSGstandardfr...
Introduction to acids and bases pH and pOH of strong acids and bases Weak acid and base equilibria Acid-base reactions and buffers Acid-base titrations Molecular structures of acids and bases pH and pKa Properties of buffers Henderson-Hasselbalch equation ...
Measuring Acidity and Basicity: pH, pOH, and KW 228 Ka and Kb: Finding Strength through Dissociation 230 Answers to Questions on Acids and Bases 233 Chapter 17: Achieving Neutrality with Titrations and Buffers 237 Concentrating on Titration to Figure Out Molarity 238 Maintaining Your pH with Buff...
[H ] 1.0 =¥10 @ 25 C K =¥K 1 electron volt per atom 96.5 kJmol-1 a b pH =-log [H+], pOH =-log[OH-] 14 pH =+ pOH Equilibrium Constants [A-] Ka (weak acid) pH pKa =+log [HA] Kb (weak base) [HB+] Kw (water) pOH pKb =+log [B] Kp (gas pressure) pKa ...
(f) A student prepares a solution containing equimolar amounts of HC H O and NaC H O . The pH of 2 3 2 2 3 2 the solution is measured to be 4.7. The student adds two drops of 3.0 M HNO (aq) and stirs the sample, 3 observing that the pH remains at 4.7. Write a balanced,...
Clearly label which is the acid and which is the base. (b) Determine the value of Ka for propanoic acid at 25C. (c) For each of the following statements, determine whether the statement is true or false. In each case, explain the reasoning that supports your answer. (i) The pH of ...