Question: A buffer is made using only Tris (weak base) and HCl. What volume (in mL) of 2.50 M HCl would be used to make 0.90

A buffer is made using only Tris (weak base) and HCl. What volume (in mL) of 2.50 M HCl would be used to make 0.90 L of a buffer solution with a total buffer concentration ([Tris] + [TrisH⁺]) of 0.10 M, and pH 8.5?

TrisH⁺ + H2O Tris + H3O⁺

Data: pKa (TrisH⁺) = 8.30

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