<p>It's in my Barrons book, but I don't see it in my online AP Chem course (program through John Hopkins CTY program).</p>
<p>No, I have never seen it on the subject test (or any practice test).</p>
<p>WongTongTong, what did you get on the chem SAT II? And how do you recommend I prep to take it in October? Right now I’m basically just taking an online AP Chem course through the Johns Hopkins CTY program and planning to do lots of practice tests when the course is done.</p>
<p>I’ve never seen normality either. I took about 4 practice tests, and the June SATII Chem.</p>
<p>I don’t remember seeing it, but it might be worth learning.</p>
<p>Even if “normality” isn’t explicitly mentioned in any question, it’s function as an extension of molarity means that you probably use the concept very often without even thinking about it.</p>
<p>Yup. Just like Halogen sad, Normality draws a strong correlation to Molarity. It was in my Kaplan book too, but I took the chem test twice, and it was never on the test.</p>
<p>@Yamster, I got a 780.</p>
<p>I would say just to get used to the format of the test by taking some practice tests (TTCE questions) because they are somewhat annoying. Other than that, AP Chem pretty much covers it all.</p>
<p>Normality=hydrogen atoms in molecule x molarity</p>
<p>^Only in acid-base chemistry. Instead of hydrogen ions (or hydroxide ions), you could also have any other individual reactant, such as MgCl2. Mg would have N=1, and Cl would have N=2.</p>