For dissociation of weak acid HA in water: HA ⇌ H+ + A-. Equilibrium constant is called:
ASolubility product Ksp
BKa (acid dissociation constant)
CKw
DKb
Answer & Solution
Correct answer: B. Ka (acid dissociation constant)
Ka is the acid dissociation constant: Ka = [H+][A-]/[HA]. Larger Ka means stronger acid (more dissociation).
Related questions
For the dissociation of a weak acid HA, the degree of dissociation α is given (approximateAccording to Brønsted-Lowry, an acid is a substance that:If Q (reaction quotient) > K_c at some instant, the reaction will:Le Chatelier's principle states that a system at equilibrium under stress:K_sp of a sparingly soluble salt AB at 25 °C is 4 × 10⁻¹⁰. Molar solubility s of AB is:A buffer solution is most resistant to pH change when:K_w (ionic product of water at 25 °C) is:The pH of a 0.01 M HCl solution is: