According to le chatelier’s principle, increased pressure will a. always shift the equilibrium to a higher reaction rate b. shift the equilibrium toward the side with the largest number of gas molecules c. destroy the equilibrium if there are no gas molecules d. shift the equilibrium away from the side with the largest number of gas molecules e. destroy the equilibrium if the number of gas molecules is equal on both sides

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.