Chemistry, 10.12.2019 02:31 auraziabagley
Afeed solution at 25 oc contains 3500 mg nacl / l (density = 999.5 kg /m3 ). the water permeability constant is 3.50 x10 -4 kg solvent / m2 . s. atm and solute permeability constant 2.5 x10 -7 m/s. using an applied pressure difference of 35.5 atm, calculate the water flux in kg h2o / m2 . s; solute rejection (r); the product solution concentration in mg nacl/l and solute flux
Answers: 3
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The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
Answers: 3
Afeed solution at 25 oc contains 3500 mg nacl / l (density = 999.5 kg /m3 ). the water permeability...
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