Chemistry Review: Balanced Equations, Yields, and Quantum Physics, Exams of Chemistry

Download Chemistry Review: Balanced Equations, Yields, and Quantum Physics and more Exams Chemistry in PDF only on Docsity! SI Test 2 Review 3-1-04 1. 10.0 g of acetylene (C2H2) is burned in 10.0g of oxygen. Write the balanced chemical equation governing the reaction and determine the limiting reagent. What amount of all the products and reactants is present after the reaction is complete? 2. Aspirin is produced by heating salicylic acid, C7H6O3, along with acetic anhydride, C4H6O3, to produce the desired aspirin, C9H8O4, and acetic acid, CH3COOH. What is the theoretical yield in grams of aspirin when 2.00g of salicylic acid is reacted with 4.00 g of acetic anhydride? If the actual yield is 1.98g, what is the percent yield for the reaction? 3. White phosphorus, P4, is prepared by fusing calcium phosphate with elemental carbon and sand, silicon dioxide to produce the desired white phosphorus along with CaSiO3 and carbon monoxide. How many grams of calcium phosphate are required to produce 10.0g of phosphorus. 4. Vanillin, the compound which provides the vanilla flavor, burns in air to release 2.43g of carbon dioxide and 0.50g of water when 1.05g of vanillin is burned. If vanillin is composed only of carbon, hydrogen, and oxygen, what is the empirical formula of the compound? 5. Liquid nitroglycerin (C3H5N3O9) is detonated and forms gaseous carbon dioxide, nitrogen, oxygen, and water. If 3.00mL of nitroglycerin(density = 1.592g/mL) is detonated then how many grams of nitrogen are produced? Determine the electron configuration for the following atoms and give the values for the principal and azimuthal quantum numbers for the last electron added. 6. Se 7. U 8. Os 9. Ba Determine all possible values for each quantum number given the following: 10. n = 6 11. n = 3 12. n = 1