Atrisubstituted cyclohexane compound is given below in its chair conformation. draw the corresponding planar (overhead) representation, using wedge-and-dash bonds to indicate the substituent positions. to be graded properly, include the hydrogen atoms on the chirality centers (asymmetric carbons). be sure that both wedge/dash bonds are drawn on the outside of the ring, or else the stereochemistry may be interpreted as square planar.

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.