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Write a balanced chemical equation for the fermentation of

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro ISBN: 9780321910295 34

Solution for problem 47P Chapter 7

Introductory Chemistry | 5th Edition

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Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro

Introductory Chemistry | 5th Edition

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Problem 47P

PROBLEM 47P

Write a balanced chemical equation for the fermentation of sugar (C12H22O11) by yeasts in which the aqueous sugar reacts with water to form aqueous ethyl alcohol (C2H5OH) and carbon dioxide gas.

Step-by-Step Solution:
Step 1 of 3

Solution 47P

Sucrose is a dimer of glucose and fructose molecules. In the first step of alcoholic fermentation, the enzyme invertase cleaves the glycosidic linkage between the glucose and fructose molecules.

C12H22O11 + H2O + invertase → 2 C6H12O6

Next, each glucose molecule is broken down into two pyruvate molecules in a process known as glycolysis. Glycolysis is summarized by the equation:

C6H12O6 + 2 ADP + 2 Pi + 2 NAD+ → 2 CH3COCOO− + 2 ATP + 2 NADH + 2 H2O + 2 H+

The chemical formula of pyruvate is CH3COCOO−. Pi stands for the...

Step 2 of 3

Chapter 7, Problem 47P is Solved
Step 3 of 3

Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

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