w/w- an abbreviation for by weight, used in chemistry and pharmacology to describe the concentration of a substance in a mixture or solution. Properly speaking, 2% w/w means that the mass of the substance is 2% of the total mass of the solution or mixture. The metric symbol g/g has the same meaning as w/w.
Midlothian's old motto. Midlothian is a city in northwest Ellis County, Texas, United States. The city is 5 miles (8.0 km) southwest of Dallas. It is the hub for the cement industry in North Texas as it is the home to three separate cement production facilities, as well as a steel mill.
Sponsored Topics. Port Neches is a city in Jefferson County, Texas, United States. The population was 13,601 at the 2000 census. It is part of the BeaumontâPort Arthur Metropolitan Statistical Area. The area known as Port Neches was once inhabited by tribes of the coastal-dwelling Karakawa and Atakapa Indians.