To calculate the heat capacity of aluminum, we can use the formula:q = mcTwhere q is the heat energy absorbed in Joules , m is the mass of the substance in grams , c is the specific heat capacity in J/gC , and T is the change in temperature in C .We are given the mass m = 25 g , the initial and final temperatures 25C and 100C , and the heat energy absorbed q = 750 J . We need to find the specific heat capacity c .First, let's find the change in temperature T :T = T_final - T_initialT = 100C - 25CT = 75CNow, we can rearrange the formula to solve for the specific heat capacity c :c = q / mT Plugging in the given values:c = 750 J / 25 g 75C c = 750 J / 1875 gCc = 0.4 J/gCThe heat capacity of the 25 grams of aluminum is 0.4 J/gC.