Question

Gasohol is a mixture of ethanol and gasoline.

C2H5OH(l) + O2(g) CO2(g) + H2O(g)

Balance the equation. (Use the lowest possible coefficients. Include states-of-matter under the given conditions in your answer. )

Determine the mass of CO2 produced from the combustion of 182. 5 g ethanol

Answer 1

C2H5OH(l) + 3O2(g) --> 2CO2(g) + H20(g)

Step-by-step explanation:

gfm CO2 = (1 x 12) + (2 x 16) = 44 g/mol

gfm C2H5OH = (2 x 12) + (6 x 1) + (1 x 16) = 46 g/mol

n = m/gfm

= 182.5/46

=3.967 moles

n = moles of C2H5OH x 2

= 3.967 x 2

= 7.934 moles

m = n x gfm

= 7.934 × 44

= 349.096 g of CO2