Why do you add hydroxide to your hexanediamine solution? what would occur if you did not add it?.
1 answer:
<h3>Why is Hydroxide added ?</h3>
In the polymerization reaction, the lone pair electrons on the NH₂ groups of hexanediamine attack the C=O groups of the dicarboxylic acid in a nucleophilic substitution reaction as shown in the image.
Hydroxide is added to remove any H⁺ ions present and keep the hexanediamine in the deprotonated form, so that the NH₂ lone pair electrons are available for reaction.
<h3 /><h3>What if you don't add it ?</h3>If hydroxide is not added, the NH₂ groups will get protonated by H⁺ ions present to give NH₃⁺ groups, which cannot react.
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Answer:
The forward reaction is occurring at a faster rate than the reverse reaction.
Explanation:
Reaction quotient (Q) of the given reaction is -
where [NO], and
represents concentrations of respective species at a certain time.
Here = 0.80 M,
= 0.050 M and [NO] = 0.10 M
So,
Hence
It means that forward reaction is faster than reverse reaction at that point. Because then only concentration of NO is higher than concentrations of and
which makes Q higher than K.