There is no perfect way to study for this course. I recommend skimming the chapter before lecture, come to class and take notes, read the book thoroughly, paying particular attention to the examples in the text, then do all the problems. I recommend trying the problems below first.
If you have time you should recopy all your notes. Most people do not have that kind of time. If you do not recopy all your notes, please reread them before you go to bed that night. You may find that you can remember things that you need to add. Fifteen minutes before class please skim your notes again. You may find that this lets your mind "boot up" into chemistry mode. It will also remind you to ask about anything that was unclear about the last material covered.
Homework for Test ONE
CHM 1025C
Ch 1: Exercises: 3, 5, 6, 7,9
Ch 2: Key Concepts: 2, 8, 9
Exercises: 1, 3, 5, 7, 9, 13, 15, 17, 19, 21, 23, 23, 25, 31, 37, 39, 41, 53, 55, 56, 67
Ch 3: Exercises: 9, 11, 15, 19, 23, 25, 27, 29, 37, 41, 45, 47, 49, 53, 55, 61, 69, 71, 73, 85, 87
Ch 4: Exercises: 7, 13, 27, 29, 37, 51, 53, 55, 57, 63, 67, 81, 91
Ch 5: Exercises: 9, 11-14, 17, 19, 21, 22, 23, 33, 35,37, 43, 45, 53, 55, 57, 63, 65, 69, 71, 73, 77, 78, 81, 83, 85, 89
Energy can take many different forms. There is radiant energy, electrical energy, chemical energy, thermal energy and mechanical energy. Please discuss energy conversions in these everyday situations:
a) Running a hair dryer from an electrical outlet.b) Heating water on a gas stove.c) Eating a pasta meal and then running 11 miles.Be sure to describe the types of energy that are being converted and whether the energy is potential or kinetic energy.
A calculator answer of 82.70569 must be rounded off to two significant figures. What answer is reported?
Ethyl alcohol has a density of 0.794 g/ml. What is the volume, in quarts, of 2.40 kg of alcohol?
725 mg is the same mass as _____g.
How many significant figures are in the number 0.02008?
How many centimeters (cm) are there in 1 foot? (report your answer to 3 significant figures.)
There were 24 students in my laboratory class. Is that an exact number or a measurement?
A molecule has 26 electrons, 28 protons and 30 neutrons. What is the element ? How would you write it? (Use the form described in class with the chemical symbol, atomic number, charge and mass number.)
Assume I have discovered a new element (Mi) and there are two naturally occurring isotopes. My element has 196 protons. One of the isotopes(isotope 1) has 200 neutrons and the other(isotope 2) has 220 neutrons. They exist in 60 : 40 ratio. (Isotope 1 is more abundant.) What is the average atomic mass of my element? (report your answer to 3 significant figures.)
How many electrons are permitted in a d subshell?
How many electrons are permitted in a d orbital?
The maximum number of electrons that may occupy the second electron shell is ?
Please describe the physical significances of the quantum numbers n (principle quantum number), l (angular momentum quantum number), and m (magnetic quantum number) and s (spin). (Please use complete sentences.)