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.
Serena Williams wins Wimbledon, becomes oldest Grand Slam champ in the Open era. Published: July 11, 2015 10:36 a.m. Serena Williams celebrates after defeating Garbine Muguruza to win Wimbledon on July 11, 2015. World No. 1 Serena Williams won Wimbledon on Saturday and became the oldest woman to win a Grand Slam tournament in the Open era. The 33-year-old American also completed the second âSerena Slamâ of her career â which means she holds all four Grand Slam titles at once. The last time she did it was in 2002-2003.