1.) An 80-proof brandy is a 40.0% (v/v) ethanol solution. The proof is twice the percent concentration of alcohol in the beverage. How many mL of alcohol are present in 750. mL of brandy? (2 points)
2.) Fill in the missing information in the table for the following ion: (2 points)
Ion
Symbol of Element
# protons
35
# neutrons
#electrons
36
Atomic Number
Mass Number
81
Charge of Ion
3.) One tablet of Tums, an antacid, contains 500.0 mg of calcium carbonate. When calcium carbonate reacts with hydrochloric acid (gastric fluids), carbon dioxide gas, water and aqueous calcium chloride are produced. Write a complete balanced chemical equation for this reaction. (2 points)
4.) A person has a dietary restriction to have an intake of protein at 24 g per day. If this person eats an 8.0 oz burger that is 15.0% protein, have they exceeded the protein limit for the day? Show work, do not just answer yes or no. (2 points)
5.) Tamiflu (Oseltamivir) is drug used to treat influenza (the flu). It has a molecular formula C16H28N2O4. Given this formula, what is the percent composition of each element in this compound? (2 points)
6.) The STP volume of an ideal gas is 3.25 m3. Calculate the volume of the sample at 2.35 atm and 35°C. (2 points)
7.) Draw a possible Lewis structure for the carbonate ion, CO32- (1 point).
8.) Name the element that has the electron configuration [Xe]6s24f145d106p5? (1 point)
9.) An atom called X is bonded to another atom by a double bond. What is the largest number of additional atoms that can be bonded to X and still conform to the octet rule? (1 point)
