Given stock solutions of 3 m potassium acetate and 500 mm, Ask an Expert

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Given stock solutions of 3 M Potassium Acetate and 500 mM EDTA, and a jar of solid Tris powder (molecular mass = 121 g/mol), how much of each component (including water) do you need to make 200 mL of a solution of 75 mM Potassium Acetate, 20 mM EDTA, and 100 mM Tris? Assume the density of Tris powder is 1 g/mL.

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