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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