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What is the approximate pH at the equivalence point of a weak acid-strong base titration if 25 mL of aqueous formic acid requires 29.80 mL of 0.3567 M NaOH? K a =1.8 Ã 10-4 for formic acid.

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13 Dec 2019

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1) The titration of a 25.0 mL sample of a base requires 23.6 mL of 0.100 M HCl. What is the concentration of the base assuming that it is mono-protic?2) The titration of a 50.0 mL sample of di-protic acid requires 23.6 mL of 0.100 M NaOH. What is the concentration of the acid?3) In the titration of a 25 mL sample of a 0.110 M solution of formic acid with 0.110 M strong base, what is the pH initially?4) In the titration of a 25 mL sample of a 0.110 M solution of formic acid with 0.110 M strong base, what is the pH at the half-equivalence point?5) In the titration of a 25 mL sample of a 0.110 M solution of formic acid with 0.110 M strong base, what is the pH at the equivalence point?

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Weâre going to titrate formic acid with the strong base, NaOH. There is initially 100. mL of 0.50 M formic acid and the concentration of NaOH is 1.0 M. All work MUST be shown to receive credit. See announcement for due date.

1) What is the initial pH of the formic acid solution? ___________

2) What is the percent ionization under initial conditions? __________%

3) After the addition of 10 mL of NaOH, what is the pH? ___________

4) After the addition of 25 mL of NaOH, what is the pH? Think ___________

about where in the titration this brings you.

5) What volume of NaOH is required to reach the equivalence point? ___________

6) What is the pOH at the equivalence point? ___________

7) What is the pH at the equivalence point? ___________

8) If, instead of NaOH being added, 0.05 moles of HCl is added by __________%

bubbling the gas through the solution. Assume that the volume has

not changed. What is the percent dissociation of formic acid?

Weâre going to titration formic acid with the strong base, NaOH. There is initially 100 mL of 0.50 M formic acid and the concentration of NaOH is 1.0 M. Please shown all work!!

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What is the approximate pH at the equivalence point of a weak acid-strong base titration if 25 mL of aqueous formic acid requires 29.80 mL of 0.3567 M NaOH? K a =1.8 Ã 10-4 for formic acid.

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What is the approximate pH at the equivalence point of a weak acid-strong base titration if 25 mL of aqueous formic acid requires 29.80 mL of 0.3567 M NaOH? K a =1.8 Ã 10-4 for formic acid.

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Related textbook solutions

Basic Chemistry

Principles of Chemistry Molecular Approach

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What is the approximate pH at the equivalence point of a weak acid-strong base titration if 25 mL of aqueous formic acid requires 29.80 mL of 0.3567 M NaOH? K a =1.8 Ã 10-4 for formic acid.