chemical units

Question 1

molar units (M) measure ______ and are expressed as in units of ____ or _____

Answer 1

concentration of solute in a solution; mol/L;mM (millimolar)

Question 2

molal (m) units measure ___ and are expressed as _____

Answer 2

solute (moles)/solvent (Kg or L) (i.e., just amount of water, not solutes)

Question 3

an infinitely dilute solution assumes that ___

Answer 3

the solution is essentially all solvent (e.g., water) and the amount of solute is negligible