Question

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Using the balanced equation for fermentation answer the following questions.
C6H12O6(aq)-> 2 C2H6O(aq) + 2 CO2(g)

How many grams of glucose are needed to form 2.0 mol of ethanol?

Answer 1

Looking at the balanced equation for fermentation:

C6H12O6(aq) -> 2 C2H6O(aq) + 2 CO2(g)

We can see that 1 mol of glucose (C6H12O6) produces 2 mol of ethanol (C2H6O).

So, to form 2.0 mol of ethanol, we would need:

2.0 mol ethanol x (1 mol glucose / 2 mol ethanol) = 1.0 mol glucose

Therefore, we would need 1.0 mol of glucose to form 2.0 mol of ethanol.

To convert from moles of glucose to grams, we can use the molar mass of glucose, which is approximately 180.16 g/mol.

Mass of glucose needed = 1.0 mol x 180.16 g/mol = 180.16 g

Therefore, we would need 180.16 grams of glucose to form 2.0 mol of ethanol.