In order of increasing pH, rank 0.15 M aqueous solutions of CaCl2, NaCN, NH4Br, and KF.
Species Equilibrium Constant
HCN Ka = 4.9 x 10-10
NH3 Kb = 1.76 x 10-5
HF Ka = 3.5 x 10-4
A. NH4Br < CaCl2 < KF < NaCN
B. NH4Br < CaCl2 < NaCN < KF
C. KF < NH3 < HCN < CaCl2
D. CaCl2 < NH4Br < KF < NaCN
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In order of increasing pH, rank 0.15 M aqueous solutions of CaCl2, NaCN, NH4Br, and KF....
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