A solution of NH4Cl (ammonium chloride) in water is:
ANeutral (pH = 7) because it is a salt
BBasic (pH > 7) from chloride hydrolysis
CAcidic (pH < 7) due to NH4+ hydrolysis
DStrongly basic (pH > 12)
Answer & Solution
Correct answer: C. Acidic (pH < 7) due to NH4+ hydrolysis
NH4Cl = salt of WEAK base (NH4OH) + STRONG acid (HCl). NH4+ undergoes hydrolysis: NH4+ + H2O → NH3 + H3O+, producing acidic solution (pH < 7). Cl- (conjugate of strong HCl) doesn't hydrolyze.
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: