A laboratory solution is prepared by dissolving NH gas in water to make 0.150 M NH
CHEMISTRY · Subjective · A Level · Chemistry · Acids and bases · Acids and bases
Problem
A laboratory solution is prepared by dissolving NH3 gas in water to make 0.150 M NH3, then adding enough HCl(aq) to convert exactly 0.050 M of the NH3 to NH4+ while keeping the total volume unchanged. Given Kb(NH3)=1.8×10−5 at 25 °C, determine the pH of the final solution.