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Question

Which one of the following solutions will form a buffer solution (after the reaction is completed)? (a) 50 mL of 1.0 M NaOH(aq) + 100 mL of 1.0 M HCl(aq) (b) 100 mL of 1.0 M NaOH(aq) + 50 mL of 1.0 M HCl(aq) (c) 100 mL of 1.0 M NH3(aq) + 50 mL of 1.0 M HCl(aq) (d) 50 mL of 1.0 M NH 3 (aq) + 100 mL of 1.0 M HCl(aq)