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Which indicator would be the best to use for a titration between 0.30 M (CH 3 )

ID: 829640 • Letter: W

Question

Which indicator would be the best to use for a titration between 0.30 M (CH3)2NH with 0.30 M HI? You will probably need to consult the appropriate table in the book.

phenol red, color change at pH 7-9

bromothymol blue, color change at pH 6-8

alizarin yellow R, color change at pH 10-12

methyl red, color change at pH 4-6

thymol blue, color change at pH 8-10

Selected Answer: 1.

phenol red, color change at pH 7-9

2.

bromothymol blue, color change at pH 6-8

3.

alizarin yellow R, color change at pH 10-12

4.

methyl red, color change at pH 4-6

5.

thymol blue, color change at pH 8-10

Explanation / Answer

phenol red, color change at pH 7-9

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