Parts per million (ppm) is a common way to express small concentrations of a solute in water. a sample of tap water that is 25 ppm cl−cl− contains 25 grams of cl−cl− for every 1,000,000 grams of water. which units are numerically equal to ppm for dilute aqueous solutions? μg/l cg/l ng/l mg/l g/l

Does anyone know a lot about how to: - calculate mass of magnesium metal - calculate the actual yield of magnesium oxide - calculate the theoretical yield of mgo - calculate the percent yield of mgo - determine the percent yield of mgo - determine the average percent yield of mgo i had to do an online lab and its asking these questions but i have no idea where to start or how to be able to find these things. i can post the chart of the data from the lab or if you can tell me exactly how i can find each.

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

What is the source of continuous heat and energy that we receive from the sun