hey is there anyone out there able to help me? 1.If we wish to prepare a buffer

Question

hey is there anyone out there able to help me? 1.If we wish to prepare a buffer with a pH of 9.39 from amixture of bicarbonate and carbonate, what ratio ofcarbonate:bicarbonate concentration should we use? (pKa2for carbonic acid is 10.25) 2.If you mix 125 mL of a buffer at pH 9.32 with 125 mL of purewater, what will be the pH of the resulting solution? hey is there anyone out there able to help me? 1.If we wish to prepare a buffer with a pH of 9.39 from amixture of bicarbonate and carbonate, what ratio ofcarbonate:bicarbonate concentration should we use? (pKa2for carbonic acid is 10.25) 2.If you mix 125 mL of a buffer at pH 9.32 with 125 mL of purewater, what will be the pH of the resulting solution? 2.If you mix 125 mL of a buffer at pH 9.32 with 125 mL of purewater, what will be the pH of the resulting solution?

Explanation / Answer

pH = pKa + log[A-]/[HA] 9.39 = 10.25 + log[A-]/[HA] -0.86 = log[A-]/[HA] [A-]/[HA] = 0.138

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.