Date: 303. In determining the concentration of acetic acid, HC2H3O2, in vinegar, barium hydroxide, Ba(OH)2, could be used in the titration instead of sodium hydroxide, NAOH. 2HC2H302(aq) + Ba(OH)2 (aq) Ba(C2 H302)2(aq) + 2H20) Using a pipet, 10.00 mL of vinegar sample is placed in a titration flask and 2 drops of indicator are added. a. [4 pts] It takes exactly 19.22 mL of 0.2144 M Ba(OH)2 solution to react with all the acetic acid in the sample. What is the molar concentration of the acetic acid in the vinegar sample? BaCzts02)2+2H20 ZHCrt302 t BaloH) M 101.22mL 0.2144M mole mel b. [4 pts.] What is the concentration of Ba additive. at equivalence point? Assume that the volume is c. [4 pts.] Please write down the net ionic equation. Acetic acid is a weak acid, all weak acids are weak electrolytes. BaC2t302+ t,0 2HCLt302t Ba20H Page 4 of 5

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Date:
303. In determining the concentration of acetic acid, HC2H3O2, in vinegar, barium hydroxide,
Ba(OH)2, could be used in the titration instead of sodium hydroxide, NAOH.
2HC2H302(aq) + Ba(OH)2 (aq) Ba(C2 H302)2(aq) + 2H20)
Using a pipet, 10.00 mL of vinegar sample is placed in a titration flask and 2 drops of indicator are
added.
a. [4 pts] It takes exactly 19.22 mL of 0.2144 M Ba(OH)2 solution to react with all the acetic acid in
the sample. What is the molar concentration of the acetic acid in the vinegar sample?
BaCzts02)2+2H20
ZHCrt302 t BaloH)
M
101.22mL
0.2144M
mole
mel
b. [4 pts.] What is the concentration of Ba
additive.
at equivalence point? Assume that the volume is
c. [4 pts.] Please write down the net ionic equation. Acetic acid is a weak acid, all weak acids are
weak electrolytes.
BaC2t302+ t,0
2HCLt302t Ba20H
Page 4 of 5
Transcribed Image Text:Date: 303. In determining the concentration of acetic acid, HC2H3O2, in vinegar, barium hydroxide, Ba(OH)2, could be used in the titration instead of sodium hydroxide, NAOH. 2HC2H302(aq) + Ba(OH)2 (aq) Ba(C2 H302)2(aq) + 2H20) Using a pipet, 10.00 mL of vinegar sample is placed in a titration flask and 2 drops of indicator are added. a. [4 pts] It takes exactly 19.22 mL of 0.2144 M Ba(OH)2 solution to react with all the acetic acid in the sample. What is the molar concentration of the acetic acid in the vinegar sample? BaCzts02)2+2H20 ZHCrt302 t BaloH) M 101.22mL 0.2144M mole mel b. [4 pts.] What is the concentration of Ba additive. at equivalence point? Assume that the volume is c. [4 pts.] Please write down the net ionic equation. Acetic acid is a weak acid, all weak acids are weak electrolytes. BaC2t302+ t,0 2HCLt302t Ba20H Page 4 of 5
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