Question: A buffer is made using only Tris (weak base) and HCl. What volume (in mL) of 1.50 M HCl would be used to make 0.50

A buffer is made using only Tris (weak base) and HCl. What volume (in mL) of 1.50 M HCl would be used to make 0.50 L of a buffer solution with a total buffer concentration ([Tris] + [TrisH⁺]) of 0.20 M, and pH 8.3?

TrisH⁺ + H₂O Tris + H₃O⁺

Data:

pK_a(TrisH⁺) = 8.30

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