AP Chem question

Test Preparation
1

<p>Thanks for everyone who helped last time. Here's another marathon problem from Zumdahl's Chemistry book, Ch 14... (couldn't find the answer online, except for one explanation using a buffered solutions method, and we haven't gotten there yet). </p>

<p>Find the pH of solution A and solution C. </p>

<p>Solution A is 50.0 mL of a 0.1 M solution of the weak monoprotic acid HX.</p>

<p>Solution B is a 0.05 M solution of the salt NaX. It has a pH of 10.02 </p>

<p>Solution C is made by adding 15.0 ml of .250 M KOH to solution A. </p>

<p>Thanks so much!! You all are so much smarter than I am; I don't get how you just know this stuff...</p>

2

<p>I think before we solve it, you need to give us the ka (acid dissociation constant) for the weak monoprotic acid HX</p>

3

<p>No, that's all the problem gives you. but i did find the answer: </p>

<p><a href="http://www.wellesley.edu/Chemistry/chem120/1315sol.html%5B/url%5D"&gt;http://www.wellesley.edu/Chemistry/chem120/1315sol.html&lt;/a&gt;&lt;/p>

<p>Thanks anyway.</p>