Friedel-Crafts alkylation requires dry conditions because AlCl3 may combine with water thereby hindering the reaction.
Friedel-Crafts involves the introduction of an alkyl group into a benzene ring. This occurs by electrophilic substitution of a proton on the aromatic ring with an alkyl group.
The set up must be free from water because water could inactivate the Lewis acid (AlCl3) due to combination of the Lewis acid with water thereby hindering the reaction.
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Answer:It creates a heat source on the cold water and the molecules act against each other and then it becomes steam.
Explanation:I had to take this on a test.
Nitrogen dioxide is one of the primary components of air pollution. It is released by the combustion of nitrogen oxide.
<h3 /><h3>How do you calculate the percentage yield of nitrogen oxide?</h3>
Given:
- Mass of nitrogen oxide consumed = 1500 kg
- Mass of nitrogen oxide produced = 1500 kg
The given chemical equation of nitrogen oxide is:
Now, to calculate the percentage yield, the following conversion factor should be used:
Nitrogen dioxide = 2300 kg
The percentage yield will be:
Percentage yield = 65.2 %
Thus, the percentage yield of nitrogen dioxide is 65.2%.
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Heat fusion is the amount of energy required to convert one mole of ice into water, 16650J is per 50g so if we divide 16650 by 50 we find it per gram: 16650/50 = 333J/g or 0.33KJ/g
hope that helps :)
