20. Solving a chemistry problem
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20. Solving a chemistry problem
91. Calculate the minimum detectable amount of iron (III) (in μg) by reaction with sulfosalicylic acid in an ammonia medium with an absorbing layer thickness of 5.0 cm and a minimum volume of a colored solution of 15 cm3. The molar absorption coefficient of the complex is 4.0*104. The minimum optical density measured by the photocolorimeter is 0.01.
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