How would you prepare a 105 mL solution of 2.2% HEPES from a 250 mM stock...

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Answer 1

Answer #1

A) 1000mL 250mM in % means in 100mL 250mM * 100 / 1000 25mM or 25% V1M1 105 * 2.2% 105 * 2.2 /25 B) V2M2 V2 25 V2 9.24 mL enc

Answer 2

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