AP CHEM
1. Which compound contains the highest percentage of magnesium by mass?
(A) MgNH4PO4
(B) Mg(H2PO4)2
(C) Mg2P4O7
(D) Mg3(PO4)2
6. Which of the following is a weak electrolyte in aqueous solution?
(A) HF
(B) NaF
(C) HCl
(D) KCl
4. What is the molarity of sodium ions in a solution prepared by diluting 250. mL of 0.550 M Na2SO4 to 1.25 L?
(A) 0.110 M
(B) 0.138 M
(C) 0.220 M
(D) 0.275 M
Sunday, April 27, 2014
Friday, April 4, 2014
And The 2014 Winners Are...
What happened to my room?
Each year the students make a molecular and brochure of their favorite molecule. We then have a voting period over two days where current and former students as well as teachers vote on the models. The votes are entered on a Google form accessed using any internet device. Congratulations go out to all my students for producing these wonderful representations.
This years winners (by popular vote) are as follows...
First Place Period G and An Overall Winner |
First Place Period C and An Overall Winner |
In the dark
|
An Overall Winner Period G |
Second Place (1) Period A |
Second Place (2) Period A |
Second Place (1) Period B |
Second Place (2) Period B |
Second Place Period C |
Second Place (1) Period G and An Overall Winner |
Second Place (2) Period G |
Second Place (3) Period G |
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