Question

how many moles of glucose are needed to form 150 g of ethanol

Answer 1

Explanation:

C6H12O6 → 2C2H5OH + 2CO2

mols ethanol needed = grams/molar mass

Using the coefficients in the balanced equation, convert mols ethanol to mols glucose

Now convert mols glucose to grams. g = mols x molar mass = ? Post your work if you get stuck.

Answer 2

Answer:

C6H12O6(aq)→2C2H5OH(aq)+2CO2(g)

Explanation:

Molecular mass of ethanol,

46.07g⋅mol−1.

We require,

122.0⋅g46.07⋅g⋅mol−1=2.65molethanol.

Given that 1 mol of glucose gives 2 moles of ethyl alcohol upon fermentation, we need to ferment at least 1.33mol of sugar. What is this amount in grams?