Heat of Combustion of paraffin wax

Initial mass of candle 40.3g
Mass of tin calorimeter 41.1g
Mass of half-filled calorimeter with water 220.4g
Initial temp of water 18.8°C
Final temp of water 26.6°C
Final mass of candle 38.2g

Calculate heat of combustion of paraffin wax

Heat of fusion of ice lab

Initial mass of empty cup calorimeter 9.55g
Initial mass of water 200.15g
Initial mass of ice + water 209.7g
Initial temp of water 41.9°C
Initial mass of ice 26.9g
Final mass of cup 9.55g
Final mass of water 227.05g
Final mass of cup + water 236.6g
Final temp of water 26.9°C

Calculate the heat of fusion of ice

To calculate the heat of combustion of paraffin wax, you can use the equation:

Q = mcΔT

where:
Q is the heat released or absorbed (in joules)
m is the mass of water (in grams)
c is the specific heat capacity of water (4.18 J/g°C)
ΔT is the change in temperature (in °C)

First, calculate the mass of water used in the experiment by subtracting the mass of the calorimeter from the mass of the calorimeter with water:
Mass of water = (Mass of half-filled calorimeter with water) - (Mass of tin calorimeter)
Mass of water = 220.4g - 41.1g
Mass of water = 179.3g

Next, calculate the change in temperature:
ΔT = (Final temperature of water) - (Initial temperature of water)
ΔT = 26.6°C - 18.8°C
ΔT = 7.8°C

Now, calculate the heat of combustion using the formula:
Heat of combustion = Q/mass of paraffin wax

To calculate Q, you can use the formula mentioned earlier:
Q = mcΔT
Q = (mass of water) * (specific heat capacity of water) * (change in temperature)
Q = 179.3g * 4.18 J/g°C * 7.8°C

Finally, you can calculate the heat of combustion of paraffin wax by dividing Q by the mass change of the candle:
Heat of combustion = Q / (Initial mass of candle - Final mass of candle)
Heat of combustion = (179.3g * 4.18 J/g°C * 7.8°C) / (40.3g - 38.2g)

Please plug in the numbers into the formulas to find the final values.