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How would you make 10 mL of solution of 50 mM Tris (pH 6.8) containing 100 mM NaCl? The only thing that is supplied to you is 1M Tris (pH 6.8) and 1M NaCl. You have full access to all the deionized H2O you may need. Plus 3 M HCl, 40 g/mol of NaOH pellets, and a pH meter.

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