4321 14 13 12 11 10 9 8 7 7 2 7654321O 0 LO 5 10 10 20 20 15 mL base added 25 30

You are in charge of making a Tris buffer at pH 7.5. You could start with solid Tris base as you did in lab, but you found stock solutions of 1.0M Tris base and 1.0M Tris Hydrochloride (the conjugate acid form) in the lab and decided to make the buffer with those. How much of each of the stock solutions would you mix together to make 200.0 mL of 1.0M Tris buffer at pH 7.5?

At which point of a titration curve, is the pH value of the solution equal to the pKa of the weak acid? O at the quarter equivalence point O at the equivalence point O at the half equivalence point

QUESTION 5 When titrating a strong monoprotic acid and KOH at 25°C, the O pH will be equal to 7 at the equivalence point. titration will require more moles of base than acid to reach the equivalence point. O pH will be less than 7 at the equivalence point. pH will be greater than 7 at the equivalence point. titration will require more moles of acid than base to reach the equivalence point.

A student is making a titration curve. To do so, they added 10.00 mL of 0.2460 M formic acid to a flask. They then added 16.53 mL of 0.1072 M KOH to the flask. What is the pH at this point in the titration curve? The pka of formic acid is 3.751.

In the titration of HF with NaOH, which species are present at the equivalence point? O HF, NAOH, and H20 only O NaF, NAOH, and H20 only O NaF, HF, and H20 only O NaF and H20 only O HF and H20 only

7. A solution was made by mixing 50.0 mL of 0.750 M HCN with 25.0 mL of water. What is the pH of this solution? The pka of HCN = 9.31. 8. One of the compounds featured on the TV series "Breaking Bad" was hydrofluoric acid (HF), pKa = 3.14. a) A solution of HF has a pH = 1.77. What was the initial [HF] for this solution in mol L-1? b) What is the equilibrium concentration of F in this solution in mol L-1? c) What is the percent ionization of HF in this solution?

How do I approach this question?

Classify each statement as true or false regarding a strong acid/strong base titration. Statement True or false? The steepest part of the titration curve occurs around the equivalence point. The pH at the equivalence point is -7. >