Consider the titration of a 25.0-mL sample of 0.115 M CH3COOH with 0.100 М КОН. Ка СН3СООН %3 1.8х10-5 O The pH at the equivalence point is neutral. O The pH at the equivalence point is = 14 since one electrolyte is a strong electrolyte. O The pH at the equivalence point is > 7. O The pH at the equivalence point is 0.

What is meant by the term "standard" in a standard 0.20 M NaOH solution? What is the difference between an equivalence point and an end point of a titration?

11,The equivalence point of titrating of the weak base with the strong acid will be observed at Group of answer choices A, pH>7 B, pH<7 C, pH=pKb D, pH>pKb E, pH=7   12,The titration curve of titrating a diprotic acid with a strong base will have two distinct equivalence points  Group of answer choices A, if Ka1<<Ka2 B, if Ka1=Ka2 C, always D, in case of ta strong acid E, if Ka1>>Ka2

16.0mL of a 0.750M solution of H>COz are titrated with a 1.0OOM solution of KOH. At what volume of base will the equivalence point be reached? 42.7 mL 12.0 mL O24.0 mL 20.0 mL 21.3 mL

A 10.0 ml sample of 0.15 M HCIO is titrated with 0.15 M KOH. What is the pH at the equivalence point? K, for HCIO = 4.0 × 10 8. O 2.98 O 11.04 O3.84 O 10.14 O 3.27 O 10.71

To determine buffer capacity, 40.0mL of solution are titrated with 0.13M NaOH. How many moles of acid were added? initial V- 2.21mL final V- 20.86mL initial pH- 4.32 final pH- 5.61

Dilute solutions of the same weak acid (pKą = 4.5) ranging in concentration from 2 × 10-6 M to 2 × 10-2 M (0.002 to 20 mM) are titrated with a strong base that is five times more concentrated than the acid. At low concentrations of a weak acid, how does the concentration of the acid affect the shape of the titration curve? The higher the concentration of the acid, the sharper the inflection at the equivalence point. The lower the concentration of the acid, the sharper the inflection at the equivalence point. The shape of the titration curve is the same, regardless of the acid's concentration. The shape of the titration curve depends only on the pKa of the acid, not its concentration.

If the pH at the 1/2 equivalence point is 4.19, what would be the Ka?

(a) A 25.0 mL sample of 0.175 M methylamine CH3NH2 (Kb = 1.3 x 10-5) is titrated with 0.150 M HBr. Find the initial pH   at the ½ equivalence point     after 5.0 mL of acid is added     the pH at the equivalence point     the pH after 5.0 mL acid is added after the equivalence point