CHEMISTRY ZONE

SK026


THERMOCHEMISTRY

What should you know about this chapter ???

















- RIZALZEN _


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ChApTeR 1 : MaTter

 1) Isotope Notation
                  

           X : element
         A : nucleon number
         Z : proton number

2) Relative Atomic Mass ( Ar)




3) Relative Molecular Mass (Mr )






4)  Average Atomic Mass

                 



5)

6)  Measurement of Concentration
   -Percentage by mass,% w/w  = mass  of solute (g) / mass of solution (g)  X 100 %

   -Percentage by volume,% v/v =volume of solute (ml) / volume of solution (ml)
                                                        X 100%

   -Mole Fraction = the number of mole of compenent / total mole of mixture

   -Molarity = moles of solute (mol) / volume of solution (L or dm ^3 )

  -Molality = moles of solute (mol) /mass of solution (kg)

7)  Dilution of Solution



8)  Percentage Yield



9) Redox Titration
      = MV / 1000