Chemistry: Matter and Change
1st Edition
ISBN: 9780078746376
Author: Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher: Glencoe/McGraw-Hill School Pub Co
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Question
Chapter 23, Problem 65A
Interpretation Introduction
Interpretation:
The molecular weight of stachyose should be calculated.
Concept introduction:
A biological molecule which consists of carbon, hydrogen and oxygen is known as saccharide or carbohydrate. The general formula of saccharide is
Saccharides (sugar) are classified as: monosaccharides, disaccharides and polysaccharides.
Monosaccharides are defined as a simpler carbohydrate which contains one sugar molecule and can’t hydrolyze into smaller carbohydrate.
Disaccharides are defined as a saccharide which contains two sugar molecules. It is formed when two monosaccharides are linked by glycosidic bonds. It is a double ring structure.
Tetrasaccharides are defined as a saccharide which contains four sugar molecules. It is formed when four monosaccharides are linked by glycosidic bonds.
Polysaccharides are defined as a saccharide which contains many units of sugar molecules that is more than two monosaccharides are linked by glycosidic bonds.
Expert Solution & Answer
Explanation of Solution
It is given that the Stachyose is a tetrasaccahride which contains two D-galactose units, D-glucose unit and one D-fructose unit.
Molecular weight of each sugar molecule = 180 g/mole
Since, it is given that four sugar molecules are present.
Thus,
Total molecular weight = 
= 
There are four sugar units implies three linkages are present, thus, there water molecules are released.
Now,
Molar mass of water = 18 g/mole
Total molecular weight = 
= 
Therefore,
Molecular mass of Stachyose = 
= 
Chapter 23 Solutions
Chemistry: Matter and Change
Ch. 23.1 - Prob. 1SSCCh. 23.1 - Prob. 2SSCCh. 23.1 - Prob. 3SSCCh. 23.1 - Prob. 4SSCCh. 23.1 - Prob. 5SSCCh. 23.1 - Prob. 6SSCCh. 23.2 - Prob. 7SSCCh. 23.2 - Prob. 8SSCCh. 23.2 - Prob. 9SSCCh. 23.2 - Prob. 10SSC
Ch. 23.2 - Prob. 11SSCCh. 23.3 - Prob. 12SSCCh. 23.3 - Prob. 13SSCCh. 23.3 - Prob. 14SSCCh. 23.3 - Prob. 15SSCCh. 23.3 - Prob. 16SSCCh. 23.3 - Prob. 17SSCCh. 23.3 - Prob. 18SSCCh. 23.3 - Prob. 19SSCCh. 23.4 - Prob. 20SSCCh. 23.4 - Prob. 21SSCCh. 23.4 - Prob. 22SSCCh. 23.4 - Prob. 23SSCCh. 23.4 - Prob. 24SSCCh. 23.4 - Prob. 25SSCCh. 23.5 - Prob. 26SSCCh. 23.5 - Prob. 27SSCCh. 23.5 - Prob. 28SSCCh. 23.5 - Prob. 29SSCCh. 23.5 - Prob. 30SSCCh. 23.5 - Prob. 31SSCCh. 23.5 - Prob. 32SSCCh. 23 - Prob. 33ACh. 23 - Prob. 34ACh. 23 - Prob. 35ACh. 23 - Prob. 36ACh. 23 - Prob. 37ACh. 23 - Prob. 38ACh. 23 - Prob. 39ACh. 23 - Prob. 40ACh. 23 - Prob. 41ACh. 23 - Prob. 42ACh. 23 - Prob. 43ACh. 23 - Prob. 44ACh. 23 - Prob. 45ACh. 23 - Prob. 46ACh. 23 - Prob. 47ACh. 23 - Prob. 48ACh. 23 - Prob. 49ACh. 23 - Prob. 50ACh. 23 - Prob. 51ACh. 23 - Prob. 52ACh. 23 - Prob. 53ACh. 23 - Prob. 54ACh. 23 - Prob. 55ACh. 23 - Prob. 56ACh. 23 - Prob. 57ACh. 23 - Prob. 58ACh. 23 - Prob. 59ACh. 23 - Prob. 60ACh. 23 - Prob. 61ACh. 23 - Prob. 62ACh. 23 - Prob. 63ACh. 23 - Prob. 64ACh. 23 - Prob. 65ACh. 23 - Prob. 66ACh. 23 - Prob. 67ACh. 23 - Prob. 68ACh. 23 - Prob. 69ACh. 23 - Prob. 70ACh. 23 - Prob. 71ACh. 23 - Prob. 72ACh. 23 - Prob. 73ACh. 23 - Prob. 74ACh. 23 - Prob. 75ACh. 23 - Prob. 76ACh. 23 - Prob. 77ACh. 23 - Prob. 78ACh. 23 - Prob. 79ACh. 23 - Prob. 80ACh. 23 - Prob. 81ACh. 23 - Prob. 82ACh. 23 - Prob. 83ACh. 23 - Prob. 84ACh. 23 - Prob. 85ACh. 23 - Prob. 86ACh. 23 - Prob. 87ACh. 23 - Prob. 88ACh. 23 - Prob. 89ACh. 23 - Prob. 90ACh. 23 - Prob. 91ACh. 23 - Prob. 92ACh. 23 - Prob. 93ACh. 23 - Prob. 94ACh. 23 - Prob. 95ACh. 23 - Prob. 96ACh. 23 - Prob. 97ACh. 23 - Prob. 98ACh. 23 - Prob. 99ACh. 23 - Prob. 100ACh. 23 - Prob. 101ACh. 23 - Prob. 102ACh. 23 - Prob. 104ACh. 23 - Prob. 105ACh. 23 - Prob. 106ACh. 23 - Prob. 1STPCh. 23 - Prob. 2STPCh. 23 - Prob. 3STPCh. 23 - Prob. 4STPCh. 23 - Prob. 5STPCh. 23 - Prob. 6STPCh. 23 - Prob. 7STPCh. 23 - Prob. 8STPCh. 23 - Prob. 9STPCh. 23 - Prob. 10STPCh. 23 - Prob. 11STPCh. 23 - Prob. 12STPCh. 23 - Prob. 13STPCh. 23 - Prob. 14STPCh. 23 - Prob. 15STPCh. 23 - Prob. 16STPCh. 23 - Prob. 17STP
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