75 g KMnO4 = molecules KMnO4 7.23 × 1024 Al atoms = grams Al 9.23 × 1023 Au atoms = moles Au 125 g H3PO4 = molecules H3PO4 0.75 moles CO2 = total atoms

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?