Respuesta :

kenmyna

The formula mass of oxalic acid   H2C2O4  is =90.036



Explanation

  • The  formula mass  is sum  of atomic weights  of  atoms  in  a molecule.
  • for oxalic acid is the sum  of  atomic weight of  Hydrogen(H)  +  carbon(C)  +oxygen  (O).

          =  (2 x 1.008)  + (12.01 x2) + (16 x4)=90.036