To calculate the specific heat capacity (c) of a substance, data from an experiment is needed in which heat is exchanged between the substance and another object. The formula for specific heat capacity (C) is C = Q/(m x ΔT), where Q is the energy added and ΔT is the change in temperature. To solve for c, the equation c = Q/mΔT can be used, where Q is the amount of heat gained or lost by the substance. In the given example, the original equation is Cp= Q/mΔT and the value for c is 34,700 J/(350 g x 151ºC). The energy gained is from two different sources, the water and the calorimeter, which can be substituted into the equation.