how much volume of a 5M koh solution must be added to 1.0 L of a 0.1M glycine buffer at ph 9.0 to bring its ph exactly to 10.0
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How much 5 M KOH must be added to 1.0 L of 0.1 M glycine (see question 9) at pH = 9.0 to bring its pH to exactly 10.0? Group of answer choices none of the above 10 ml 9 ml 1 ml
Supreeta N.
2. (5 points) A biochemist wishes to use glycine to buffer a solution at pH 9.0. Glycine has two ionizable groups, with pKa values of 2.34, and 9.6. She has 1 liter of a 0.1 M glycine solution at pH 2.94. She also has prepared solutions of strong acid and strong base, 1.0 M HCl and 1.0 M NaOH. Which solution, HCl or NaOH, must she add to bring the pH to 9.0? NaOH How much of that strong acid or strong base solution must she add to bring the pH to 9.0? For partial credit, show your work (use back of page if needed). Amount of solution of strong acid or base added
Sai S.
You need to prepare an acetate buffer of pH 5.53 from a 0.863 M acetic acid solution and a 2.23 M KOH solution. If you have 925 mL of the acetic acid solution, how many milliliters of the KOH solution do you need to add to make a buffer of pH 5.53? The pKa of acetic acid is 4.76.
Adi S.
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