APChemistryTest–Chapters1-3.doc

AP Chemistry Test Chapters 1-3 (2007)Name_Answer each of the following in the space provided.1. Write each of the following measurements in scientific notation.A. 22400 km_B. 0.04540 g_C. 7200000 s_D. 0.000400 L_2. Solve the following. Write the answer to the correct number of significant figures.A. 5.4003 + 3567.981 = _B. (4.0 x 10-6) (3.93 x 108) = _3. Calculate the volume, in liters, of a rectangular bar which measures 0.10 m long, 2.0 cm thick, and 40.0 mm wide.4. A bullet, of density 5.40 g/cm3 and a mass of 80.0 g, is dropped into a graduated cylinder containing exactly 50.0 mL of water. To what height will the water level rise in the cylinder?5. Contrast the terms precision and accuracy as they apply to experimental results.6. Manganese makes up 1.3 x 10-4 percent by mass of the elements found in a normal healthy body. How many grams of manganese would be found in the body of a person weighing 183 lb? (2.2 lb = 1.0 kg)7. A homogeneous mixture is also called a _.8. Explain the main differences between a mixture and a compound. Give an example of each.9. How many protons, neutrons and electrons are in 127 I- ?10. Convert 32.9 degrees Celsius to Kelvin. _ 11. What is the mass percent of oxygen in CH3OH?12. Naturally occurring argon has three isotopes, the atoms of which occur in the following abundances: 0.34% 36Ar, 0.07% 38Ar, 99.59% 40Ar. Calculate the average atomic weight of argon from these data.13. A sample of ammonia (NH3) has a mass of 56.6 grams. How many molecules are in the sample?14. What is the mass of one atom of copper in grams?15. A. A substance contains 35.0 g nitrogen, 5.05 g of hydrogen, and 60.0 g of oxygen. How many grams of hydrogen are there in a 185 g sample of the substance? B. What fundamental law of chemistry did you apply to answer part A?16. Match each scientist to his accomplishment._Antoine LavoisierA. solid sphere model of the atom_Amadeo AvogadroB. measured the relationship between pressure and volume of gases_Robert MillikanC. nuclear model of the atom_Robert BoyleD. verified the law of conservation of mass_John DaltonE. suspended oil drops to determine the mass of an electron_Ernest RutherfordF. proposed that at the same temperature and pressure, equal volumes of different gases contain the same number of molecules17. Name the following compounds.a. H2O2_b. Pb(C2H3O2)2_c. Hg2F2_d. NaHSO4_e. H3PO4_f. Al(NO2)3_g. K2Cr2O7_h. N2O5_18. Write the formula for the following compounds.a. ammonium hydroxide_b. hydrosulfuric acid_