Problem: Two drops of indicator HIn (K a = 1.0 x 10 -9), where HIn is yellow and In- is blue, are placed in 100.0 mL of 0.10 M HCl. b. The solution is titrated with 0.10 M NaOH. At what pH will the color change (yellow to greenish yellow) occur?

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Two drops of indicator HIn (K a = 1.0 x 10 -9), where HIn is yellow and In- is blue, are placed in 100.0 mL of 0.10 M HCl. 

b. The solution is titrated with 0.10 M NaOH. At what pH will the color change (yellow to greenish yellow) occur?

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Our tutors have indicated that to solve this problem you will need to apply the Acid Base Indicators concept. If you need more Acid Base Indicators practice, you can also practice Acid Base Indicators practice problems.

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Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl 2nd Edition practice problems.