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Answer to Question #70508 in General Chemistry for Aminata
Question #70508
3. In the presence of excess thiocyanate ion, SCN - , the following reaction is first order in chromium (III) ion, Cr +3, the rate constant is 2 x10 -6 s -1.
Cr +3 + SCN - →Cr(SCN) 2+
a) what is the half-life in hours?
b) How many hours would be required for the initial conc of Cr+3 to decrease to the following values: 25% left, 12.5% left?
Cr +3 + SCN - →Cr(SCN) 2+
a) what is the half-life in hours?
b) How many hours would be required for the initial conc of Cr+3 to decrease to the following values: 25% left, 12.5% left?
Expert's answer
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