MOLAR CONCENTRATION OR MOLARITY OF SOLUTIONS!!

Molar Concentration:
in a solution: smaller quantity-solute
                    larger quantity-solvent

-The concentration is the amount of solute dissolved in a certain volume of a solution.
-MOLAR CONCENTRATION or MOLARITY is the number of moles of solute in one liter of a solution.  Use "M" to denote the molar concentration and it has the unit of "mole/L"

ex. A 6.00M solution is more concentratied than 1.00M.

• Formulae:

              -Molarity: moles of solute(mol)/volume of solution(L)
               or more simply: M=mol/L

ex. 0.510moles of NaOH in 1.400L of solution.

         M=mol/L    0.510mole NaOH/1.400L=0.364M NaOH

ex. in 1.30L of a 0.75M Ca(OH)2
         0.75*1.30=0.975moles

         0.975*74.1g/1mole=72g Ca(OH)2