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Multiple Choice
How many molecules of water are needed to completely hydrolyze a polymer that is ten monomers long?
A
8
B
11
C
9
D
10
Verified step by step guidance
1
Understand the concept of hydrolysis: Hydrolysis is a chemical reaction where water is used to break down the bonds of a particular substance. In the case of polymers, hydrolysis breaks the bonds between monomers.
Identify the structure of the polymer: A polymer is made up of repeating units called monomers. If a polymer is ten monomers long, it means there are 10 monomer units connected by covalent bonds.
Determine the number of bonds between monomers: In a linear polymer chain of ten monomers, there are 9 bonds connecting these monomers (since each bond connects two monomers).
Apply the concept of hydrolysis: Each bond between monomers requires one molecule of water to be broken. Therefore, the number of water molecules needed is equal to the number of bonds.
Calculate the number of water molecules: Since there are 9 bonds in a polymer that is ten monomers long, 9 molecules of water are needed to completely hydrolyze the polymer.