125.2g ethane gas (C2H6) burns in oxygen. C2H6 + O2 -----------> CO2 + H2O Balan

Question

125.2g ethane gas (C2H6) burns in oxygen. C2H6 + O2 -----------> CO2 + H2O Balance the equation. (4 points) How many moles of CO2 was produced? (6 points) How many grams of H2O was produced? (6 points) Solve for the number of O2 molecules produced. (6 points)

Explanation / Answer

a) 2C2H6 + 7O2 -> 4CO2 + 6H2O b) moles of C2H6 used = 1025.75/30 = 34.2 mass of CO2 produced = 1025.75/30 *2 *44 =3008.8667 grams c) moles of H2O produced = 3*no. of moles of C2H6 = 68.4 moles d) number of moles of oxygen used = 3.5 moles of C2H6 used = 119.7 moles

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