How many C atoms are there in 12 µl of 3 M acetic acid? (2 points)
2. The average safe concentration of chlorine in a pool is 2 mg/L. An Olympic swimming pool holds
about 660,000 gallons of water. How many Mg of chlorine are in the pool? How many chlorine
atoms are there? (3 points)
3. Answer the following questions about a 0.476 µM solution of butanoic acid. (10 points)
a. You add 30 mL of the solution to 5 mL of water, what is the new concentration?
b. How many oxygen atoms (from butanoic acid) are there in 24 mL of the 0.476 µM
solution (ignore the oxygen from water)
c. You add 15 mL of the solution to 5 mL of 0.714 µM Ca(OH)2. Write a balanced chemical
equation for the resulting reaction. What is the H3O+ concentration of the resulting
solution? What is the pOH?
4. Provide structures for the following chemicals. (3 points)
a. 2-ethyl-3,4,6-trimethyl-1-octene
b. 4-methylcyclopentanol
c. 2-chloro-3-hexanone
5. For each set of chemicals, circle the one with the lowest melting point. (4 points)
a. Methane or methanal
b. Dodecane or ethanol
c. NaCl or dodecanoic acid
d. Octadecanoic acid or cis-9-cis-12-octadecenoic acid
6. State the oxidation state for each element in the following compounds. (6 points)
a. Fe(NO3)3
b. CaF2
c. NaF
d. IF5
e. XeF5
–
f. F2