<p>by the way, it said flourine was the most electronegative not most acidic. If you refer back to the chart, it said the most electronegative atoms had the highest PH making them less acidic. If you look up something like hyrdoflouric acid, u will see that its PH is around 3.14, so it has to be above 2.38. </p>
<p>If you research a floride ion, you will notice that it is relatively basic.</p>
<p>If you think about it, flourine is a good H+ acceptor. The less H+ you have, the less acidic a solution is. Thus, the more electronegative an atom is, the more than likely it is going to take electrons from the hydrogens.
I am most certainly sure it is above 2.38 now.</p>
<p>Are you sure? I could have sworn that PH decreases as electronegativity increases according to the passage…</p>
<p>EDIT: Wait…if I remember my AP chem correctly, the more hydrogens = the more acidic. more hydroxide = basic.</p>
<p>@scott: You are wrong. The answer was most definitely (A) less than 1.44.</p>
<p>@acttester agreed. Because the higher the EN was, the more acidic it was. The highest EN on there had a ph of 1.44…They said flourine had the highest EN, thus its pH had to be less than 1.44</p>
<p>yea my coalwin, what you learned in chem is right. But that makes sense, the less H+ ions, the higher the PH ( meaning the less acidic).</p>
<p>ACT Tester, how about you look up online how flourine creates relatively basic solutions in comparison to other very acidic substances.</p>
<p>it was for sure less than 1.44</p>
<p>The answer was definitely below 1.44 (or whatever).</p>
<p>Why? </p>
<p>The halogen, fluorine, in this case, increases the acidity of the substance the more it pulls away on the COO-, and fluorine, as the most electronegative element, pulls the most on it. And while the differential between the pH of flouro and chloro might not be significant, fluorine causes the pH to be even more acidic.</p>
<p>Credibility: I have my final for Quantitative Analysis in a week and we just covered a part of organic chemistry…and I just checked my book, lol.</p>
<p>^ I get what you’re saying. HF is a weak acid. But I could have sworn in the charts they showed, as electronegativity increased, pH decreased. I remember Cl having the highest electronegativity and the lowest pH.
So now I’m confused.</p>
<p>oh okay then you guys are right probably if you guy all said that.</p>
<p>
</p>
<p>That does not hold true for organic chemistry…</p>
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<p>What the hell?!! I honestly don’t remember that question (and I remembered 30/40 questions)…I’m starting to worry I missed reading that question, but it seems only ACT and Requiem actually remember the question, no one else does…</p>
<p>i looked it up, the more electronegative an atom is the more acidic it tends to be. Less than 1.4 is def right =(</p>
<p>It was discussed on the Oct 2009 act as well, which was the same test.
<a href=“http://talk.collegeconfidential.com/act-preparation/798266-official-october-act-science-thread-16.html[/url]”>http://talk.collegeconfidential.com/act-preparation/798266-official-october-act-science-thread-16.html</a>
It’s like halfway down the page</p>
<p>^lol. I liked how someone said they “power bubbled” three answeres. Sounds like my Reading section!!</p>
<p>I’m still mad they used the exact same English, Science, and Reading sections -___________________-.</p>
<p>@scott: Now you see how frustrating it can be when people propose wrong answers and assert that they are “most certainly sure”… -_-</p>
<p>^What was on the x axis in those intensity graphs, time, right?</p>
<p>lol yeah act, gotta admit it is very very frustrating. I convinced myself what i wanted to believe.
What do you guys think a -2 in science will give me as a total score?</p>
<p>@WongTongTong: Yep.</p>