What is the pH of a solution made by adding 0.025 moles of and acid with a pKa = 4.3 to enough water to make 500.0 mL of

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What Is The Ph Of A Solution Made By Adding 0 025 Moles Of And Acid With A Pka 4 3 To Enough Water To Make 500 0 Ml Of 1 (67.59 KiB) Viewed 60 times

What is the pH of a solution made by adding 0.025 moles of and acid with a pKa = 4.3 to enough water to make 500.0 mL of solution? You wish to make 1.00 L of 50.0 mM phosphate buffer at pH 7.4. You have 1.20 M H3PO4 pKa = 2.12, 1.75 M H₂NaPO4 pKa = 7.2, and solid Na2HPO4 pKa = 12.3. How much (either mL of grams) of which compounds should you use? You wish to make 2.50 L of 0.075 M phosphate buffer at pH 7.8. All you have is H3PO4 at 3.00 M, and NaOH at 2.00 M. How much (mL) of each do you need to use? See pKa values from the last question. This is similar to the acetic acid NaOH question we did in