Calculating Amounts of Reactants and Products
Solid lithium hydroxide is used in space vehicles to remove the carbon dioxide gas exhaled by astronauts. The hydroxide reacts with the carbon dioxide to form solid lithium carbonate and liquid water. How many grams of carbon dioxide can be absorbed by 1.00 g of lithium hydroxide?
Propane, C3H8 (Figure), is a common fuel used for cooking and home heating. What mass of O2 is consumed in the combustion of 1.00 g of propane? (a) 5.00 g (b) 0.726 g (c) 2.18 g (d) 3.63 g.
Does this reaction produce or consume thermal energy (heat)?
▲ Figure Propane burning in air.
Liquid propane in the tank, C3H8, vaporizes and mixes with air as it escapes through the nozzle. The combustion reaction of C3H8 and O2 produces a blue flame.