Register to reply

AP chemistry 2006 Form A Questions

by future_chemist
Tags: 2006, chemistry, form
Share this thread:
future_chemist
#1
May14-07, 02:17 PM
P: 4
1. The problem statement, all variables and given/known data
I'm doing #5 in this Ap Chemistry 2006 Form A Free Response Questions. Here's the link http://www.collegeboard.com/prod_dow..._chemistry.pdf

2. Relevant equations
N/A


3. The attempt at a solution

I think i got the first 3 parts right. Here's what i came up with.

a. X = Na2CO3
Y = KCl
Z = MgSO4

b. OH- + Mg+2 -> Mg(OH)2

c. X has a PH greater than 7 because the its solution contains OH-
Phys.Org News Partner Science news on Phys.org
Experts defend operational earthquake forecasting, counter critiques
EU urged to convert TV frequencies to mobile broadband
Sierra Nevada freshwater runoff could drop 26 percent by 2100
chemisttree
#2
May15-07, 09:03 AM
Sci Advisor
HW Helper
PF Gold
chemisttree's Avatar
P: 3,724
Answers look good except for 'c'. The answer is not false but is not the answer to the question asked. The presence of OH- must be backed up by more information, especially a reaction indicating where the OH- came from.
future_chemist
#3
May16-07, 11:07 PM
P: 4
I got it figured out already. Thanks anyway. Please close this thread if you don't mind :)


Register to reply

Related Discussions
Call For Papers: 2006 PDPTA, ICAI, SERP + more (28 joint conferences); Las Vegas, USA, June 2006 General Physics 0