CHEM 1110 Midterm: Chemistry 1110 2012 Spring Test 4
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Multiple choice: clearly indicate the best answer on the scantron form. (60 pts: a sample of a trapped ideal gas has its volume doubled while its temperature remains constant. Pb(no3)2(aq) + 2nacl(aq) pbcl2(s) + 2nano3(aq: there are no spectator ions, pb2+(aq), no3, na+(aq), cl (aq, pb2+(aq), cl (aq, na+(aq), no3. (aq: which of the following gases effuses most rapidly, hcl, co, nh3, o2, n2, in hydrogen iodide __________________ are the most important intermolecular forces, covalent bonds, hydrogen bonding, polar covalent bonds, london dispersion forces, dipole-dipole forces. Calculations: clearly show all work on the blank space on the scantron answer sheet for full credit. (40 pts: how many grams of sodium tetrafluoroborate (nabf4) are needed to make 2. 50l of a 0. 540 m solution (mm of. Nabf4 = 109. 79 g/mol): students in a laboratory class were provided with 6. 00 m hydrochloric acid solution from the stockroom. The instructions in the experiment called for 75. 0 ml of 2. 00 m hydrochloric acid.
