How many mL of 0.200 M aqueous acetic acid are mixed with 13.2 mL of 0.200 M aqueous sodium acetate to give a buffer with pH = 4.2? (K_a for acetic acid is 1.8 × 10^-5) A)37 mL B)18 mL C)3.8 mL D)14 mL E)46 mL

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The Answer of How many mL of 0.200 M aqueous acetic acid are mixed with 13.2 mL of 0.200 M aqueous sodium acetate to give a buffer with pH = 4.2? (K_a for acetic acid is 1.8 × 10^-5) A)37 mL B)18 mL C)3.8 mL D)14 mL E)46 mL

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