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1. |
What is the minimum pH when \[Fe{{(OH)}_{3}},\] starts precipitating from a solution containing \[0.1M\text{ }FeC{{l}_{3}}\]? \[{{k}_{sp}}\] of \[Fe{{(OH)}_{3}}=8\times {{10}^{-13}}{{M}^{3}}(\log \text{ }2\text{ }=\text{ }0.3)\] |
A. | 3.7 |
B. | 5.7 |
C. | 10.3 |
D. | 8.3 |
Answer» D. 8.3 | |