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InterviewSolution
| 1. |
An acid-base indicator has a K_a of 3×10^{-5}. The acid form of the indicator is red and the basic form is blue. The change in H^{+ }concentration (which is 9×10^{-5}) in order to change the indicator from 25% red to 75% blue is- 1)2×10^{-5}, 2)8×10^{-5}, 3)9×10^{-5, }4)1×10^{-5} |
| Answer» An acid-base indicator has a K_a of 3×10^{-5}. The acid form of the indicator is red and the basic form is blue. The change in H^{+ }concentration (which is 9×10^{-5}) in order to change the indicator from 25% red to 75% blue is- 1)2×10^{-5}, 2)8×10^{-5}, 3)9×10^{-5, }4)1×10^{-5} | |