Asample of aluminum absorbs 9.86 j of heat, upon which the temperature increases from 23.2°c to 30.5°c. since the specific heat capacity of aluminum is 0.90 j/g-k, what is the mass of the sample?

Calcium carbonate decomposes at high temperatures to give calcium oxide and carbon dioxide as shown below. caco3(s) cao(s) + co2(g) the kp for this reaction is 1.16 at 800°c. a 5.00 l vessel containing 10.0 g of caco3(s) was evacuated to remove the air, sealed, and then heated to 800°c. ignoring the volume occupied by the solid, what will be the mass of the solid in the vessel once equilibrium is reached?