The specific rotation of pure adrenaline in water (at 25 oC)…

The specific rotation of pure adrenaline in water (at 25 oC) is -53.  A chemist used a synthetic strategy to synthesize adrenaline in the lab, but it was suspected that the final product was not enantiomerically pure and had the contamination of the other enantiomer. The specific rotation of the mixture was found to be -45.  What was the % of the desired adrenaline enantiomer in the mixture? 

The ASPEN/Academy of Nutrition and Dietetics malnutrition di…

The ASPEN/Academy of Nutrition and Dietetics malnutrition diagnostic protocol include 6 criteria: weight loss, insufficient energy intake, loss of muscle mass, loss of subcutaneous fat, reduced grip strength, and fluid accumulation.  Of these 6 criteria, how many must be met in order to diagnose malnutrition?   Write your answer using numbers (e.g. 1, 2, 3, 4, 5, 6).