What is the pH of a 100.0 mL sample of 0.10 M NH3 before the addition of any HNO3, given that the Kb of NH3 is 1.8 × 10^-5?

Determine the pH of each two-component solution. a. 0.0550 M in HI and 0.00850 M in HF b. 0.112 M in NaCl and 0.0953 M in KF c. 0.132 M in NH₄Cl and 0.150 M HNO₃ d. 0.0887 M in sodium benzoate and 0.225 M in potassium bromide e. 0.0450 M in HCl and 0.0225 M in HNO₃

Determine the pH of each two-component solution. a. 0.050 M KOH and 0.015 M Ba(OH)₂ b. 0.265 M NH₄NO₃ and 0.102 M HCN c. 0.075 M RbOH and 0.100 M NaHCO₃ e. 0.115 M NaClO and 0.0500 M KI