The following pictures represent solutions at various points in the titration of a weak acid with aqueous . (ions and solvent water molecules have been omitted for clarity.)
Which picture corresponds to each of the following points in the titration?
a. Before the addition of any
b. Before the equivalence point
c. At the equivalence point
d. After the equivalence point
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The following figure represents solutions at various stages of the titration of a weak acid, HA, with NaOH. (The Na+ ions and water molecules have been omitted for clarity.) To which of the following regions of the titration curve does each drawing correspond: (a) before addition of NaOH, (b) after addition of NaOH but before the equivalence point, (c) at the equivalence point, (d) after the equivalence point?
In the titration of acetic acid (CH3COOH) and sodium hydroxide (NaOH), what are the major sepcies present at the following points?
a) Before any NaOH is added (at the start of the titration).
b) In the buffer region. Are there any spectator ions?
c) At equivalence point. What is equivalent at this point? What has been used up? Are there any spectator ions?
d) Beyond equivalence point. What has been added since the equivalence point? Has anything reacted further since the equivalence point?
The following figure represents solutions that occur at various stages during the titration of a weak acid, HA, with NaOH. (The Na+ ions and water have been omitted for clarity.) Which of the following statements are true?
(i) The equivalence point is represented in (iv).
(ii) Both (i) and (ii) are buffer solutions.
(iii) The highest pH is represented by (ii).
A) statements (i) and (ii) are true.
B) only one statement is true.
C) all three statements are true.
D) statements (ii) and (iii) are true.
E) statements (i) and (iii) are true.