Lab 4 Flashcards
1
Q
how can you detect if a reaction is exothermic or endothermic?
A
solution will become warmer if exothermic
2
Q
how do you calculate absolute percent error?
A
[(experimental value- literature value) / (literature value)] x 100
3
Q
how do you find the q of the reaction?
A
q rxn = mCΔT
m: mass in grams
C: specific heat in J/ g °C
ΔT: change in temperature
4
Q
how do you find ΔH?
A
(q rxn in J)/(number of moles of limiting reagent)
