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Chemistry, 02.12.2019 23:10

Asample of 0.300 mg pure chromium was added to excess hydrochloric acid to form a 10.0 ml aqueous solution of a chromium (iii) salt, which has a violet hue. exactly 1.00 ml of the resulting solution was analyzed using a spectrophotometer in a 1.00-cm cell at 575 nm, and the percent transmittance for the solution was 62.5%. what is the extinction coefficient?

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