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<div class="moz-cite-prefix">On 10/10/2017 11:16 AM, wrote:<br>
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<blockquote type="cite"
cite="mid:8f279130defb407baff49cda82f2c728@spiderman.MercerU.local">
<pre wrap="">Dr Pounds,
On page 141 of the textbook. It shows the ionization of ammonia. Is a reaction in which if you gave us the reactants, we should be able to tell you the products? Because there is no way I could figure that out. I would have put the cation from the first and the anion from the second together, then the cation from the second with the anion from the first. That is not the correct answer. I am completely lost in how they are getting these products!
NH3 is not a strong acid or base or ion, so it doesn’t ionize completely, but I don’t know why the product is adding an H to NH.
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<p>So on page 141 they are showing you typical acid-base reactions.
We have discussed certain "well known" reactions in class. For
example, you know that combustion of a hydrocarbon produces water
and carbon dioxide. You also know that acid/base reaction
produce water and a salt. In cases of solubility reactions, if
you knew the solubility rules you could also probably pick out
which species formed solids from the reactions of electrolytes.
In each case of these "classic" type of reactions I would expect
for you to be able to predict the products. <br>
</p>
<p>At this stage of your chemical I do not expect for you to have
the skills to, in a general manner, predict the products of
reactions -- and for that reason I often provide for you the
reactants and products in some form -- unless it falls into one of
those categories above. <br>
</p>
<p><br>
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<p>By the way, NH<sub>3</sub> (ammonia) is the prototypical weak
base -- you will see if used ubiquitously in CHM 111 and CHM 112
along with its conjugate acid, the ammonium ion NH<sub>4</sub><sup>+</sup>.
This is one you might want to know. <br>
</p>
<p><br>
</p>
<p>The actual reason that these ions form will hopefully become more
apparent when we get to electronic structure and bonding.</p>
<p><br>
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<pre class="moz-signature" cols="72">--
Andrew J. Pounds, Ph.D. (<a class="moz-txt-link-abbreviated" href="mailto:pounds_aj@mercer.edu">pounds_aj@mercer.edu</a>)
Professor of Chemistry and Computer Science
Mercer University, Macon, GA 31207 (478) 301-5627
<a class="moz-txt-link-freetext" href="http://faculty.mercer.edu/pounds_aj">http://faculty.mercer.edu/pounds_aj</a>
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