Why doesn't the ethanoate ion act as an acid? - Merspi most recent 30 from http://merspi.com.au2010-07-29T18:12:29Zhttp://merspi.com.au/feeds/question/499http://www.creativecommons.org/licenses/by-nc/2.5/rdfhttp://merspi.com.au/questions/499/why-doesnt-the-ethanoate-ion-act-as-an-acidWhy doesn't the ethanoate ion act as an acid?Impractical2009-12-19T11:28:25Z2010-01-13T06:30:27Z
<p>I had a multiple choice question that asked: which one of the following chemical equations best represents the ionsation of the ethanoate ion CH<sub>3</sub>COO<sup>-</sup></p>
<p>I wrote the answer as the ethanoate ion acting as an acid and donating the hydrogen, it was the water as per the answer.</p>
<p>Why was I wrong?</p>
http://merspi.com.au/questions/499/why-doesnt-the-ethanoate-ion-act-as-an-acid/505#505Answer by Collin Li for Why doesn't the ethanoate ion act as an acid?Collin Li2009-12-19T15:30:48Z2009-12-19T15:30:48Z<p>The ethanoate ion CH<sub>3</sub>COO<sup>-</sup> is not an acid. It is the <strong>product</strong> of an acid (ethanoic acid: CH<sub>3</sub>COOH).</p>
<p>This is often referred to as the <strong>conjugate base</strong>. Hence, CH<sub>3</sub>COO<sup>-</sup> is actually a good base. It turns out that the other hydrogen atoms on the ethanoate ion are <em>not</em> acidic!</p>