A liter of water weighs a kilogram so 15 mg/kg = 15 ppm on a mass over mass basis. If that is the flavor of ppm you want, done. But ppm can also be computed on a volume basis, molar ratio, etc. It is better tio use a clear form with units that identifies the basis such as mg/kg.
Serena Williams knocked off Lucie Safarova in the final of the women's draw at the French Open, and Bovada has her listed as the clear favorite on the odds to win Wimbledon this year; Williams sits as the 7/4 chalk on those betting lines.
July 8, 2015. 1  The top three seeds have advanced to the semifinals at Wimbledon, setting things up for an exciting finish. Choosing a favorite among Novak Djokovic, Roger Federer, Andy Murray and Richard Gasquet is a difficult task, but despite his age and three-year Grand Slam slump, itâs Federer who is the one to beat.