25. A pure sample of (S)-phenylalanine has a specific rotation of +70°. A mixture of the two enantiomers of phenylalanine has a specific rotation of +7.0'. What are the percentages of the S and R enantiomers in the mixture? A) 52.5% S, 47.5% R B) 55% S, 45% R C) 95% S, 5% R D) 90% S, 10% R 26. Which of the following Fischer projections corresponds to the compound shown below? H₂C. H OH CH H Br CH3 CH3 CH3 CH3 H- -OH H- OH HO- H HO- H H- Br Br H H- Br Br H CH3 CH3 CH3 CH3 A) B) D)