How much energy is needed to raise the temperature of a 55g sample of aluminum from 22.4 to 94.6?

The heat needed is given by Mcθ, where m is the mass in Kg, c is the heat capacity of aluminium, and θ is the change in temperature.

Specific heat capacity of aluminium is 0.9 j/g°c

thus; Heat = 55 * 0.9 * 72.2

= 3573.9 Joules or 3.574 kJ