145. Solving a chemistry problem
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145. Solving a chemistry problem
19. The optical density of a solution of manganese formaldeximate with a concentration of 0.0700 mg manganese in 50.00 cm3, measured at 455.5 nm in a cell with a layer thickness of 1.0 cm, is equal to 0.280. Calculate the value of the molar absorption coefficient of this compound.
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