seang Messages 184 Reaction score 0 Thread starter Nov 2, 2006 #1 Hello, on one of my thermo problems, it says, "a molar concentration of .5 parts per million." what does this mean? .5 moles in a million?
Hello, on one of my thermo problems, it says, "a molar concentration of .5 parts per million." what does this mean? .5 moles in a million?