a sample of ethane, C2H6, is burned in O2. The products of combustion are carbon dioxide and water; what is the mass of the carbon dioxide produced if the mass of the ethane consumed is 20.5 grams? (Assume 100% comsumption of the ethane.)
2C2H6 + 7O2 (yields>>) 6H2O + 4CO2
2007-06-06 11:48:51 · 2 answers · asked by Aubrie 1 in Science & Mathematics ➔ Chemistry
20.5/30 x 4/2 x 44
2007-06-06 12:23:47 · answer #1 · answered by Gervald F 7 · 0⤊ 0⤋
The balanced equation is your ought to have key to this project C + O2 ===> CO2 this equation says that a million mole of C (12g) reacts with a million mole of O2(32g) to offer a million mole of CO2 (44g) - the numbers are the periodic chart hundreds rounded off for simplicity good judgment: If 12g C produces 40 4 g CO2, then 24g C ought to offer two times as plenty or 88g Or , use ratios: 12/40 4 = 24/x pass multiply and sparkling up for x 12x = 40 4 X24 x = 40 4 X24/12 = 40 4 X 2 = 88g
2016-12-12 13:35:04 · answer #2 · answered by ? 4 · 0⤊ 0⤋