To calculate the energy
absorbed by the water you must calculate the “Q” for water or Energy absorbed
or given off. In this case it is absorbed.

First, determine the mass of
the water, (1 mL of water = 1 gram of water)

Next determine the temperature
change in water (Δt = t_{final} – t_{initial})

Finally, multiply by the
either 4.184 J/g C^{o} when calculating energy for joules or multiply
by 1 cal/g C^{o} when calculating in for calories.

The equation looks like this:

**Q** = **mass** x **Δt** x **specific
heat(water)**

Note that the number of
calories and joules may seem high but remember that the numbers of calories
written on the back of packages are in kilocalories and not calories as they
indicate. Therefore divide your number of calories by a 1000cal/kcal to convert
to kcal which should be close to what to what is written on the back of the
package once you compensate for the mass.