16. (a) Would the following increase, decrease, or have no effect on the acidity of the solution? Explain your answer with appropriate equations.
Addition of LiN to liquid NH3.
Addition of SiO2 to molten Fe2O3.
Addition of Al(OH)3 to NaOH.
Addition of KHSO4 to H2SO4.
(b) Use the solvent system definition of acid and base to explain why KF behaves as a base while SbF5 behaves as an acid in BrF3.
(c) Is B(CH3)3 or BF2 the stronger Lewis acid in reaction with NH3? Explain. Which is the stronger Lewis acid, B(CH3)3 or B(C2H5)3? Explain.