Doc M's Chm 203
Learning Objectives, Reading Assignments, Problems 
and
Problem Club Number 1

Learning Objectives for the day:

Topics for Day 1:  Scientific Method, Units of Measure (mass, length, volume, and temperature), Unit conversions (metric-metric, English-metric, English-English)

Read:  Chapter 1.1 - 1.9
Do Problems 1 - 8, 20, 32, 34, 48, 58, 60, 72, 74, 80, and 82
1. Memorize the names and positions on the periodic table of the first 18 elements.

2. Know which regions of the periodic table comprise the main group elements, transition metals and the lanthanides/actinides.  Know which elements are metals, non-metals and metalloids (semi-metals)  Know which group is called each of these names: alkali metals, alkaline earths, halogens, noble gases.

3.  Know the fundamental units of scientific measurement used in the SI system.  Learn Table 1.3.

4.  Know the prefixes and decimal multipliers used in the SI system.  Use the prefix and the basic unit to determine the amount or number of SI units of measurement.  Learn Table 1.4.

5.  Given a list of units of measurement,  select those that are "derived" units (Table 1.5).  Know the volume relationships shown in Figure 1.5 (p.16).  How many liters are there in a cubic meter?  How many milliliters are there in a liter?

6.  Be able to perform temperature conversions involving the following temperature scales:  oC, oF,  and K.  Know the Tf and Tb of water on each of these temperature scales.

7.  Use the "unit analysis" method to convert a unit of scientific measurement another unit of measurement.

Problem Club #1:
1.  Matching.
 
 
alkali metal 
alkaline earth 
transition metal
Group 3
Group 4
Group 5
Group 6
halogen
noble gas
phosphorus
lithium
iron
xenon
sulfur
chlorine
calcium
silicon
aluminum
2.  Classify each of the following as a unit of mass, volume, or length and give the appropriate conversion to the standard SI unit:
a. mg     b. dL
c. cm3     d. mL
e. pm     f. nm

 

3.  Select the largest member of each pair:

a. 308 m or 0.476 km
b. 500 kg or 0.050 g
c. 1.50 cm3 or 1.50 x 103 nm3
d. 25 g or 2500 mg
e. 70 oF or 30 oC
f. 300 K or 30 oF
4.  A day on Mars is 8.864 x 104 s long and a Martian year is 5.935 x 107 s long.  How much time (measured in Earth days) are there in a Martian day?  In a Martian year?
 

5.  During earlier times in England, land was measured in units such as fardells, nookes, yards and kides:

 2 fardells = 1 nooke;  4 nookes = 1 yard  4 yards = 1 kide

a. Convert 6.00 kides to fardells

b. Convert 15 nookes to kides

c. Convert 15 nookes to fardells
 
 

6.  A common antiperspirant uses aluminum chlorohydrate as its active ingredient.  This compound contains 30.93 % aluminum, 45.86 % oxygen, 2.89 % hydrogen and 20.32 % chlorine.  How many grams of each element are present in a five ounce sample of aluminum chlorohydrate?

7.  My car gets 23 miles/gallon.  Express this in km/L.

8.  A "gas" station in Canada sells gasoline for 57.9 cents/L.
a.  Convert this to dollars per gallon.

b. If the rate of exchange is $1.00 CDN = $0.70 US, convert the price into US dollars per gallon.
 
 
 
 
 

Answers to Problem Club #1:

1.

alkali metal - lithium
alkaline earth - calcium
transition metal - iron
Group 3  - aluminum
Group 4  - silicon
Group 5  - phosphorus
Group 6 -  sulfur
halogen  - chlorine
noble gas  - xenon
2.
a. mg (mass)  1 mg = 1 x 10-3 g
b. dL (volume) 1 dL = 1 x 10-4 m3
c. cm3 (volume) 1 cm3 = 1 x 10-6 m3
d. mL (volume) 1 mL = 1 x 10-9 m3
e. pm (length) 1 pm = 1 x 10-12 m
f. nm (length) 1 nm = 1 x 10-9 m


3.  Select the largest member of each pair:

a. 0.476 km
b. 500 kg
c. 1.50 cm3
d. 25 g
e. 30 oC
f. 300 K


4. (a) 1.026 d; (b) 687 d

5.

a. 192 fardells
b. 0.94 kides
c. 30 fardells


6. 4.100 g H and 28.83 g Cl

7. 9.8 km/L

8. a. 2.19 dollars/gallon

b. 1.53 dollars/gallon