Calculate the amount of heat required to completely sublime 30.0 g of solid dry ice (CO2) at its sublimation temperature. The heat of sublimation for carbon dioxide is 32.3 kJ/mol. Express your answer in kilojoules.

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

Word equation for k+ h2o yield koh + h2

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?