ERRORS in prep books.. whats the deal?

Archive SAT Subject Test Preparation
1

<p>In the Barrons Sat Math II edition 10 and the Princeton Review SAT chemistry 2011-2012 edition there are quite a few errors. For instance, the Princeton Review said that as Ksp gets smaller, solubility increases. It’s reverse. As Ksp increases, solubility increases.</p>

<p>I only randomly searched this online due to curiosity…</p>

2

<p>Which is correct?</p>

<p>Henderson-Hasselbalch Equation:
pH = pKa + log ([conjugate acid] / [conjugate base])</p>

<p>or</p>

<p>pH = pKa + log ([conjugate base] / [conjugate acid])</p>

3

<p>Which is correct?</p>

<p>Henderson-Hasselbalch Equation:
pH = pKa + log ([conjugate acid] / [conjugate base])</p>

<p>or</p>

<p>pH = pKa + log ([conjugate base] / [conjugate acid])</p>

<p>Edit: It’s the latter, another error in the PR book!</p>

4

<p>Yes, some test prep books are so poorly written that they’re not worth it, IMO.</p>

5

<p>The deal is that they suck. The more familiar I have become with SAT, the more I realize how off the prep books are. The review material may be ok, but the practice tests are usually worthless.</p>

6

<p>Well, a practice test is a practice test. Usually I don’t see a huge difference between the style of practice tests vs. the real one. If I start seeing a ton of errors in a practice test, I’d probably declare it worthless.</p>