Question

How many grams of carbon dioxide will be produced

by the complete combustion of 30 grams of ethane,
C2Ho?
2 C2H6+ 7 02 +4 CO2+ 6 H2O

Answer 1

Step-by-step explanation:

Mass of 1 mol of C2H6

2*C = 2*6 = 12

6 H = 6*2 = 6

1 mol = 18 grams

Mols of C2H6 when 30 grams of Ethane is used.

mols = given mass / molar mass

given mass = 30 grams

molar mass = 18 grams

mols = 30 / 18

mols = 1.6666667 moles

Mols of CO2

2 ethane 2.66667

======= = ==========

4 CO2 x

Cross multiply

2x = 2.66667 * 4

2x = 10.66668 Divide by 2

x = 5.333334 Moles CO2

Molar Mass CO2

C = 12

2*O2 = 16

1 mol CO2 = 28

Grams CO2

Grams CO2 = mols * 28

Grams CO2 = 5.3334 * 28

Grams CO2 = 149.333