What units do we measure solubility in?

Answer 1

maximum moles per liter or maximum grams per liter would do.

But since solubility changes with temperature, you need to specify the temperature too, typically 0, 4, or 20 degrees Celsius depending on the solvent. 0 C is the freezing point of water so that is not a good temperature to use for water as a solvent.

The second poster is correct in saying that density is grams per liter if he means that as a ratio. But if you know the density and you have a fixed volume you know the amount by mass (grams) dissolved in that volume, and that is the solubility. It is common practice to express solubility in terms of mass, but since the molar mass provides an easy switch to moles, it is a trivial point of whether it is mass or moles we are talking about.

But to be exact, according to the CRC, p 8-122, all solubility values are expressed as mass percent of solute, 100xw2, where w2 = m2/(m1 + m2). m2 is the mass (grams) of the solute and m1 is the mass (grams) of the water, or whatever your solvent is.

Answer 2

Solubility is measured as mass of solute per volume of solution, so it could be g/mL, g/L, moles/L, lbs/(ft^3)... you get the idea! Also, because solubilty changes with temperature, you usually say that a substance has a solubility of say, 2 g/mL at 25 C.

Answer 3

hey can u just give me the answer to my question u answerd pls.Im in a hurry to solve it now....TY


Q:A mixture of 10% acid and 90% water is added to 5 liters of pure acid . the final mixture is 40% water. How many liters of water are in the final mixture?
How do I solve...please no ansewrs...I would like to know what I need to do to resolve

Answer 4

moles per liter also known as Molar(M)
grams per liter is density not solubility

Answer 5

grams per liter...