probleem van de week 6 V5 periode 4 uitwerking Vr 1 CaCO3(s) → CaO(s) + CO2(g)
Vr 2 NH3(g) + Na+(aq) + Cl-(aq) + CO2(g) + H2O(l) → NaHCO3(s) + NH4+(aq) + Cl-(aq)
Vr 3 2 NaHCO3(s) → CO2(g) + Na2CO3(s) + X X = H2O
Vr 4 CaO(s) + NH4+(aq) + Cl-(aq) → NH3(g) + Y
Vr 5 Ca2+(aq) + 2Cl-(aq)
Vr 6 Netto reactie: CaCO3(s) + 2Na+(aq) + 2Cl-(aq) → Na2CO3(s) + Ca2+(aq) + 2Cl-(aq)
Vr 7 Product is soda Na2CO3(s)
AE = (105,99/(100,09 + 116,886)*100% = 48,85% Vr 8 E-factor = (216,976 – 105,99)/(105,99) = 1,05