Ch. 1, 2, 26 measurement, atom / molecules, & organic test [60 points] AP Chem
For problems involving calculations, show your work in an organized manner, include any relevant equation (or formula and conversion factor(s)), put the proper units in your calculations / answer, and have the proper number of significant figures in your answer.
Academic Honesty: The answers on this test are my own and I am using only the allowed set of notes as described in the syllabus. I have not discussed the test questions with anyone before or during the test nor have I seen the test questions prior to the exam. If you violate any of the preceding items or do not sign, your semester grade is a F.
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1. fillin the below table [15 points]
symbol 
# protons 
# neutrons 
# electrons 
charge 
Atomic mass 
^{90}Sr^{2+}







28 


+ 3 
60 



86 
 3 
210 
2. fillin the below table; compounds might be hypothetical. [10 points]
Chemical formula 
Chemical name 
K_{2}CO_{3} 

CuO 

P_{3}Br_{7} 

S_{2}Cl_{5} 


Mercury (I) sulfide

3. The density of gold is 19.32 g / cm^{3}. A cylinder of gold is 2.00 feet long and has a diameter of 1.5 inches was melted to form a sphere; what is the radius of the sphere (in cm) ? [15 points]
[FYI: formula for volume of sphere & cylinder given]
4. Draw 4 isomers with a propyl group attached to a carboxyl group. [12 points]
5. solve. [8 points]
a. 5.0 cm^{3} / sec = __ L / min [4 points]
b. 2.1 + 3.25 = ___________ [2 points]
c. a third of 2.0 = ____________ [2 points]