Kemi Opg 40,41,42

40

  • G(Meth) = 50 g
  • Mol(Meth) = 1,56 mol (GMeth/32,04)
  • Mol(O2) = (MolMeth/2*3) = 2,34mol
  • Mol(CO2) = MolMeth = 1,56mol
  • Mol(H20) = 2*MolMeth = 3,12mol
  • G(O2) = 16*2*2,34 = 74,88g
  • G(CO2) = 44*1,56 = 68,64g
  • G(H2O) = 18*3,12 = 56,16g

41

  • Mol(CaCl2(s)) = 8,1g/111 = 0,072972973mol
  • G(AgNO3) = 169,89g/mol*MolCaCl2(s) => 12,3973784g*2 = 24,7947568g
  • G(AgCl) = 2*143,4g/mol*MolCaCl2(s) = 20,9286487g

44

  • Mol(H) = 10g/2*1g/mol = 5 Mol.
  • Mol(Cl) = 10g/(35,5*2) = 0,14 Mol.
  • Mol(HCl) = 0,14Mol*2 = 0,28 Mol.
  • G(HCl) = 0,28Mol*36,5g/Mol = 10,22 g.
Hentet fra "http://jopsen.dk/wiki/Kemi_Opg_40%2C41%2C42/"