# When yeast is added to a solution of glucose or fructose, the sugars are said to undergo fermentation, and ethyl alcohol is produced. :math&gt; C 6 H 12 O 6 ( a q ) → 2 C 2 H 5 OH ( a q ) + 2 CO 2 ( g ) is is the reaction by which wines arc produced from grape juice. Calculate the mass of ethyl alcohol, C 2 H 5 OH . Produced when 5.25 g of glucose, C 6 H 12 O 6 , undergoes this reaction.

### Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781337399425

Chapter
Section

### Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
Publisher: Cengage Learning
ISBN: 9781337399425
Chapter 9, Problem 32QAP
Textbook Problem
24 views

## When yeast is added to a solution of glucose or fructose, the sugars are said to undergo fermentation, and ethyl alcohol is produced.:math> C 6 H 12 O 6 ( a q ) → 2 C 2 H 5 OH ( a q ) + 2 CO 2 ( g ) is is the reaction by which wines arc produced from grape juice. Calculate the mass of ethyl alcohol, C 2 H 5 OH . Produced when 5.25 g of glucose, C 6 H 12 O 6 , undergoes this reaction.

Interpretation Introduction

Interpretation:

The mass of ethyl alcohol produced when 5.25 g of glucose undergo the following reaction should be calculated.

Concept Introduction:

The balanced chemical reaction for fermentation of glucose is as follows:

C6H12O6(aq)2C2H5OH(aq)+2CO2(g)

From the balanced chemical reaction, 1 mol of glucose gives 2 mol of ethyl alcohol. The number of moles of ethyl alcohol can be calculated from number of moles of glucose by balanced chemical reaction.

### Explanation of Solution

Calculate number of moles of glucose as follows:

n=mM

Molar mass of glucose is 180.156 g/mol. Calculate number of moles as follows:

n=5.25 g180.156 g/mol=0.03 mol

From the balanced chemical reaction, 1 mol of glucose gives 2 mol of ethyl alcohol thus, 0

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