Heat Capacity and Calorimetry Practice Test

A $40.0,\text{g}$ sample of aluminum is heated, and its temperature increases from $25.0^\circ\text{C}$ to $50.0^\circ\text{C}$. The specific heat capacity of aluminum is $0.900,\text{J},(\text{g}\cdot{}^\circ\text{C})^{-1}$. What is the heat absorbed by the aluminum sample, $q$?

A reaction occurs in a coffee-cup calorimeter and causes the temperature of the solution to decrease from $26.0^\circ\text{C}$ to $23.0^\circ\text{C}$. The total heat capacity of the solution is $C_{\text{soln}}=500,\text{J},/,^\circ\text{C}$. What is the heat transferred for the solution, $q_{\text{soln}}$?