Exam%201%20Key%20F2007

Exam%201%20Key%20F2007 - CHEMISTRY 24 1 EXAM I FALL 2007...

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CHEMISTRY 24 1 EXAM I FALL 2007 Date: Show all your work and clearly state any assumptions you make in a problem! No credit will be given for simply providing an answer. You must clearly show your set-up and ALL YOUR WORK. Go through the exam and work those problems you know how to do first, then start on the more difficult problems. An equation sheet has been provided at the end of this exam.' If you need more space, use the back of the page. You are not permitted to use scratch paper PLEDGE: I have not given nor received aid on this exam, nor have I seen anyone else give or receive aid on this exam. Signature:
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Key ,do5Alo -8, AS w~.~~s % 1. (6 points) Calculate the pH of a 1.05 x loe8 M solution of NaOH. c& sKm+]+Ctlq= Cb-IJ 7"; Q kw I .as x I~'M= EM*] I.05~6 +mq= z+, ~~t~~.t-\.ofx6~ ~ kw- ck1t-j rot\l_l 3 WH+ LT+l 2. (29 points) Answer the following general questions: a. (3 points) Given the hypothetical acid H~A~+, the fully protonated form, what is the principle species in solution at pH 9.00? For H~A": pLl = 1.40, pKQ = 3.44, pKd = 6.01, and pKa4 = 8.45.
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Exam%201%20Key%20F2007 - CHEMISTRY 24 1 EXAM I FALL 2007...

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