How to do the first qn???

• POP222

  9 Mar 14, 15:22

• POP222

  9 Mar 14, 15:22

• POP222

  9 Mar 14, 15:25

  Two moles of an oxidizing agent RO4-, in presence of excess alkali oxidized 24.0dm3 pf sulfur dioxide gas at rtp to sulfate(VI) ions, SO4^2-. Write the balanced oxidation half equation and determine the final state of R. 

   

  HOW TO SOLVE IT? 

• UltimaOnline

  9 Mar 14, 18:52

  Work out initial OS of R.
  Write oxidation half-eqn of SO2 to SO4 2-.
  Based on moles of SO2, find total moles of electrons transferred.
  Find total moles of electrons transferred per mole of the oxidizing agent RO4-.
  Hence from initial OS of R + electrons gained (per atom of R), work out final OS of R.
  
• POP222

  9 Mar 14, 22:13

  Number of moles of SO2 is 1 right

• UltimaOnline

  10 Mar 14, 01:08

  Originally posted by POP222:

  Number of moles of SO2 is 1 right

  
  Yes, go ahead and work out all the steps I've listed, and post your working here if you want me to check your work.