January 18 Chemistry 11

Today in chemistry we did a lab on heat of combustion of candle wax. we were to find the heat released when one mole of paraffin wax was burnt.
The materials we used were :
Candle
match
Weighing scale
lab stand
wire triangle
150ml of cold water
Pop can
thermometer

The procedure was:
set up the lab stand and the wired triangle
measure 150ml of water and pour it into the pop can
record the temperature
place the candle under the pop can and light it
let the candle burn for 10 minutes then get the new temperature
clean up after your done

Observations:
volume of water used
initial temperature of water
initial mass of candle
final mass of candle
final temperature of water

with that information we can calculate the mass of the paraffin wax that was burnt during the experiment, the moles of wax that was reacted, the number of joules of energy the water gained and the molar heat of combustion of the paraffin wax.

It was a fun lab that we did today in class just remember safety comes first always keep on your safety goggles and aprons or else you and your group members will lose 10%!

Here is a link similar to the lab we did today in class:
http://www.chalkbored.com/lessons/chemistry-12/calorimetry-candle-lab.pdf