Which substance is a polymer found in nature? O carpet O cotton O paint O nylon
2 answers:
<u>Answer:</u>
<em>B. Cotton</em>
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<u>Explanation:</u>
A polymer is a macro molecule or gaint molecule which is formed as a chain from many small molecules(which is called as a monomer).
Polymer is a repeating unit of many monomers.
For example
Ethylene or ethane formula is C2H4.
Many ethane molecules under particular temperature and pressure conditions undergo the polymerization process to form polyethene. During this process the double bond breaks and becomes single bond and produces a long chain which we call it as a polymer.
The repeating unit of Cotton polymer is called as Cellubiose which is made up of 2 glucose units.
The number of units which forms the polymer (degree of polymerization) is about 5000 cellubiose units.
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Answer:
The partial pressure of the gas produced by the reaction is 0.9187 atm
Explanation:
Given;
vapor pressure of water, = 0.0313 atm
measured atmospheric pressure, = 0.950 atm
partial pressure of the gas produced by the reaction = ?
According to Dalton's law of partial pressure; total pressure is equal to sum of partial pressure of water vapor and gas produced.
=
= 0.95 - 0.0313
= 0.9187 atm
Therefore, the partial pressure of the gas produced by the reaction is 0.9187 atm