The heat equation, as given in the introduction, can also be rearranged to calculate the mass or temperature change for a substance. Follow the same steps used to calculate the quantity of heat gained or lost, but when you solve the equation, the term for mass or temperature change must be isolated on one side of the equation. What mass, in grams, of aluminum fins could 1647 J of energy heat from 13.41 C to 21.33 C ? Aluminum has a specific heat of 0.897 (J/g)C . Express your answer to three significant figures.