Question

If the density of ethyl alcohol is 0.789 g/mL, how many quarts can be produced by the fermentation of 100.0 lb of sugar?

Answer 1

C12H22O11 + H2O ==> 4C2H5OH + 4CO2

100 lb x (453.6 g/lb) = ? g sugar
mols = grams/molar mass
1 mol C12H22O11 produces 4 mols ethanol from the equation; convert ? mols sugar to ? mols ethanol.
Convert ? mols ethanol to grams. grams = mols x molar mass = ?
Using the density, convert grams ethanol to mL ethanol = ?
Convert mL ethanol to quarts. There are 946.4 mL in 1 quart.

Answer 2

45

Answer 3

Very good thank you.
but one mol of sugar produce 2 mols of alcohol instead of 4 as you said. the reast is perfect convertion.