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.
Novak Djokovic beats Roger Federer in four sets in Wimbledon final. â¢ World No1 wins 7-6, 6-7, 6-4, 6-3 to defend Wimbledon crown. â¢ Federer sparkles but Serbâs power and precision prove too much. Novak Djokovic and Roger Federer after the Wimbledon 2015 menâs singles final.