any ideas what i can mention for:
What were the main sources of error in the experiment?
this is for an investigation for the enthalpy of decomposition of sodium hydrogencarbonate.
Also, not all of it may decompose? Just like enthalpy of combustion, not all of it is completely combusted. Im not sure though, this is just a guess.
If you did the experiment you probably did it in two steps:
by adding HCL to NaHCO3 and Na2CO3.
A source of error would be that the NaHCO3 and Na2CO3 did not fully react when it was added causing the results to vary. This could be used as another error but HEAT LOSS was the main error !
Hope this helps