Chem 1050 Final Exam Written Portion

An experimental drug is formulated in units called “Ψains”. A patient needs

97 Ψains

the new drug following surgery. The physician’s orders call for . The

????2 ???? ℎ????

180 Ψains

drug comes as

????????

. How many mL need to be added the IV of a patient

with a BSA of 2.4 m2 over a period of 8 hours? (6 points)

Consider a molecule with the molecular formula C3H4O. (12 points)

How many valence electrons are there in the molecule? (4 points)

Draw a correct Lewis structure for the molecule. (6 points)

Chose an atom in the Lewis structure you drew and mark it with an asterisk (*). Provide the molecular shape for the atom you chose. (2 points)

Perform the following unit conversion. Be sure to show your work. You will not get credit for the value only. (12 points)

A. 6.79 ???????????? = ???????? = ????

B. 1.09 ???????? = ???????? = ???????? = ????????

C. 0.455 ????????3 = ????????

Draw a balanced chemical equation for the reaction of phosphoric acid and magnesium hydroxide. Based on that equation, If you have 7.00 mL of

0.205 M phosphoric acid, how many mL of 0.800 M magnesium hydroxide solution is required to neutralize the acid? How many grams of magnesium phosphate would be formed? (12 points)

Draw the structure of the following molecules. (12 points)

3,5-diethyloctanal

ethyl butyl ether

2-chloro-5-methylcylcoheptanol

4-methylpentanoate

4-ethylheptanoic acid

butylpentylamine

Define the different levels of protein structure (primary, secondary, tertiary, and quaternary). Explain what types of forces and interactions maintain tertiary protein structure, and list two things you can do to a protein to disrupt tertiary structure. (6 points)

Why didn’t you ask about X? This class covers a broad range of topics, and while this final exam was comprehensive, I’m sure there are things you studied that I didn’t ask about. Write yourself a question to answer that you were hoping I would ask, then provide the answer to that question. (5 points)

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