Lab 6
uestions for heats of reaction
part 1: enthalpy ot balung soda and vinegar reaction
volume of vinegar
25 ml
mass of sodium bicarbonate 1g
initial temperature of vinegar 1 17 °c
final temperature of vinegar 14°c
change in temperature °c (at)
ml of
1. calculate the approximate enthalpy of the reaction in joules. estimate that
vinegar has the same thermal mass as 1.0 ml of water. ignore the thermal mass of the
sodium bicarbonate. note: it takes about 4.2 joules (i) to change 1.0 gram (1.0 ml of water 1.00
2. is the reaction endothermic or exothermic?
3. what steps could be taken to improve the accuracy of your results?
the accuracy could be improved with a better calorimeter, better thermometer.
and a larger sample.