solving defs

Question 1

the number of moles of Solute
per liter of solution.

is the number of moles of the  solute contained in one liter of  the solution.

ex. Adding salt (NaCl) in some volume of water (H2O).

Answer 1

molarity

Question 2

is the ratio of the number of moles of solute per kilogram of solvent.

Answer 2

molality