Chemistry, 07.07.2021 01:00 krissymonae
When determining the amount of an oxidant present by titration, you can use iodine and starch as an indicator.
1. First, the oxidant, like hypochlorite, oxidizes.
a. neutral iodine into iodide ion.
b. iodide ion into neutral iodine.
c. iodate polyatomic ion into iodide ion.
2. When starch and iodine are both present, the solution is.
a. blue-black.
b. brownish yellow.
c. clear.
3. During the titration, the titrant, like thiosulfate, reduces the.
a. iodide ion into iodate polyatomic ion.
b. neutral iodine into iodide ion.
c. iodide ion into neutral iodine.
4. When the iodine has completely reacted at the endpoint of the titration, the solution should become.
a. clear.
b. blue-black.
c. brownish yellow.
Answers: 3
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