Chemistry 110 - 02
Spring 2017
First Homework
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Become familiar with Hill and McCreary. “Hill and McCreary” is your textbook. Be sure to
put your name in your copy so if you misplace it, it has a chance of finding its way back to
you.
Study the course syllabus. Bring questions you have about it to class.
Prepare for lab. Read the Chemistry Lab Safety and Emergency Procedures packet. Prepare
your lab notebook as described in the syllabus. Do this every week. Read through Lab A.
(If you have not purchased the lab packet yet, you may download a copy of Lab A from the
class web page: www.tacomacc.edu/home/phunter/chem110b.shtm.)
Begin writing the first lab report.
Study for the Lab Safety Quiz on Friday.
Read Hill and McCreary Chapter 1. Study sections 2, 5, 6, 7, and 8.
Quiz 1 will include questions from the topics below and from the Second Homework. To be ready
for the quiz you should be able to answer these types of questions using only the Periodic Table you
will receive in class.
Memorize the chemical symbols of the elements given below and their English names. I
recommend you make flashcards. You should be able to give the names from the symbols and the
symbols from the names. This will be on the first quiz.
hydrogen
lithium
sodium
potassium
magnesium
calcium
strontium
barium
aluminum
carbon
silicon
nitrogen
phosphorus
arsenic
H
Li
Na
K
Mg
Ca
Sr
Ba
Al
C
Si
N
P
As
oxygen
sulfur
selenium
fluorine
chlorine
bromine
iodine
helium
neon
argon
krypton
radon
O
S
Se
F
Cl
Br
I
He
Ne
Ar
Kr
Rn
iron
nickel
copper
silver
gold
zinc
mercury
tin
lead
uranium
plutonium
Fe
Ni
Cu
Ag
Au
Zn
Hg
Sn
Pb
U
Pu
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Due 7:30 am Thursday, April 6. 10 Points.
Late homework is not accepted after 9:00 am Thursday, April 6.
To be turned in:
1. According to the class syllabus:
a. What color ink may you use on homework?
b. List all the ways you may turn in your homework.
c. May you copy homework answers from another student?
d. How much does chemistry tutoring cost in the Writing and Tutoring Center?
2. Which of these are matter? a snowman, breath, light, a mouse
3. Which of these are composed of atoms? a snowman, breath, light, a mouse
4. A glass tube contains 0.20 g of neon gas at 25 °C. (You may want to run the Kinetic Theory
Molecular Workbench simulation on the class webpage to help answer this question.)
a. What is happening at the nanoscopic scale? (Describe in detail.)
b. The neon is now heated to 125 °C. How has the neon changed at the nanoscopic scale?
c. You find a second glass tube, identical to the first, containing neon gas at 125 °C. However,
this tube contains twice the mass (0.40 g) of neon. At the nanoscopic scale, how is this tube
of neon different from the first tube at 125 °C?
5. For each of these, indicate whether its size is on the macroscopic scale, the microscopic scale, or
the nanoscopic scale.
a. a car
b. an oxygen atom
c. a bacterium
d. a grape seed
e. a red blood cell
f. a gold atom
6. All these chemical symbols are incorrect. Write the correct chemical symbols and give the name
of the element.
a. h
b. he
c. CL
d. FE
e.
na
7. a. What is the difference between an atom and an element?
b. What is the difference between a molecule and a compound?
8. Open Substances and Mixtures Question from the link on the class webpage (it’s under the
heading “For Homework 2”) and answer the questions. This is a Molecular Workbench
simulation. There are six parts, A – F.
9. Classify each of these as a compound or an element.
a. radon (Rn)
b. acetaminophen (C8H9NO2) c. propyl gallate (C10H12O5)
d. oxygen (O2)
10. Classify each of these as either a pure substance or a mixture.
a. silver
b. coffee
c. carbon dioxide
d. an apple
11. For each of these, indicate whether it is a pure substance or a mixture.
a. paint
b. carrot
c. hair
d. blood
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12. NutraSweet® contains the compound aspartame. The chemical formula for aspartame is
C14H18N2O5.
a. What elements is a molecule of aspartame made of?
b. How many atoms are in one molecule of aspartame?
c. How many hydrogen atoms are in one molecule of aspartame?
d. Is aspartame an organic compound? (see page 250) Justify your answer.
e. Aspartame is also in Canderel®. Could the aspartame in Canderel be different than the
aspartame in NutraSweet? Justify your answer.
Flour, cereal, sugar, starch,
vegetable shortening,
salt, protein, gum leavening,
propylene glycol.
Certified colors, artificial flavors.
Chocolate coating containing
cocoa, vegetable oil (containing
an emulsifier and tenox 2
less than .05%).
Tenox 2
is an antioxidant containing
butylated hydroxyanisole,
propyl gallate, citric acid,
propylene glycol.
- "Ice Cream Cone" - Ronald Gross -
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