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.

If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.