I am doing aqa a level chemistry are we required to know how to do this? Could someone explain the formulae that they have used thank you
The formula for caliometry that you know from AS, just finding out a different value.
This is a calculation relating energy change (in Joules) to temperature change (in Kelvin) via specific heat capacity. You'll find this stuff listed under 'Calorimetry' in a text book in the first Energetics section.
The equation is q = mc(delta)T
(I've written 'delta' because that's how it's pronounced; the symbol is a triangle.)
q is energy change in joules (NB, remember to multiply or divide by 1000 if given kilojoules)
m is mass of the water
delta T is the change in temperature in K