empirical formula ahhhhhhhhhhhhhhhhhhhhhh

more likely other schools won’t do this calculation. BECAUSE IT IS YEAR 12!!!!!! typical question 100% will be there (pilling seal of guarantee)

example q

  • mass of h2o = 12.9 g
  • mass of co2 = 31.4 g what to do!?
  • calculate number of moles of water
  • determine number of moles of hydrogen atoms by multiplying moles of h2o by 2
  • calculate the number of moles of co2
  • determine moles of carbon atoms (moles of carbon atoms = moles of co2)