CH231H_Midterm_1
Friday, October 25 in class.
Coverage: Chapters 1-4 plus material covered in lecture on Monday, Oct. 21. Composition of matter: elements, compounds mixtures. Experiments that demonstrate Laws of Conservation of Mass, Constant Composition and Definite Proportion. Atomic structure (protons, neutron, electrons). The mole and Avogadro's number. Distinctions among the terms atoms, ions and molecules. Chemical formulas and elemental composition. Balancing equations. Solutions and molarity.
You may bring a numeric calculator (graphing calculators required in MTH courses are OK; use of more capable gadgets like iPads are not permitted). No note cards or other material will be permitted.
You will be provided with a Periodic Table and a sheet of conversion factors, atomic weights and other potentially useful information.
Format will be short-answer and show-your-work calculation.
Class results and the exam key will be posted here over the weekend following the exam.
Results:
High score: 98
Average score:75
Approximate letter grades:
80-98 A
50-79 B
<50 C