Is Ph Always 7 At Equivalence Point
Question: Buffer
Answer:
Question: Neutralization
Answer: The mixing of equal mole portions of an acid with a base, regardless of their concentrations and strengths.
Neutralized solution has equal moles of hydroxide ion and hydronium ion.
Neutralization does not mean to make the pH of the solution equal to 7.
Question: Equivalence point
Answer:
Question: pH range for buffers
Answer: According to convention the ratio of weak acid and weak conjugate base cannot exceed 10:1 (or 1:10). The range is pKa±1
Question: Henderson-Hasselbalch Equation
Answer: pH = pKa + log([A⁻]/[HA])
As [conjugate base] increases, pH increases.
As [conjugate acid] increases, pH decreases.