South Pasadena • Chemistry
Name
Period
Date
Semester 1 Review
UNIT
1
•
MEASUREMENTS
AND DENSITY
The following measurements were taken of a rectangular Calculate the density of the block in g/cm3, recording
block of an unknown metal.
your answer with the correct significant figures.

Electronic balance reading (in g):
204.8
Write this measurement in scientific notation:

Length, width, and height of the block. Write your
measurements.
Which of the following could be the unknown metal?
 Aluminum d = 2.70 g/cm3
 Copper
d = 8.94 g/cm3
 Gold
d = 19.32 g/cm3
 Silver
d = 10.49 g/cm3
Calculate the Percent Error of your calculated density.
1
2
3
4
5
cm
cm
1
2
3
4
5
cm
cm
1
2
3
4
5
cm
cm
Does the percent error describe the accuracy or
precision of your calculated value? Explain briefly.
Semester 1 Review
UNIT 1
•
DIMENSIONAL
Perform the following conversions. Show all your work.
3.1 wks = ? min
208 cm3 = ? in3
1.4 m/s = ? km/h
0.350 dL = ? L
(1 inch = 2.54 cm)
12.6 m = ? km
–20°C = ? K
ANALYSIS
Semester 1 Review
UNIT 2
Complete the following table:
Atomic
Isotope
Number
Mass
Number
Number of
protons
44
20
Number of
neutrons
• ELEMENTS
Number of
electrons
Net Charge
Cl–
37
26
Classify each element above as:
20
57
24
hydrogen, alkali metal, alkaline earth metal, transition metal,
inner-transition metal, other metal, non-metal, halogen, noble gas
List the seven diatomic elements:
Semester 1 Review
UNIT 2
• COMPOUNDS
Consider the compound Ba(NO3)2.
Consider the compound N2O5.

Classify:

Classify:

Name the compound:

Name the compound:

Calculate the Molar Mass.

Calculate the Molar Mass.

Calculate the percent O in Ba(NO3)2.

Calculate the percent O in N2O5.

What is the mass of 0.46 mol Ba(NO3)2

How many molecules of N2O5 are in a 19.5 L
sample at STP?
[ Ionic | Covalent | Acid | Organic ]
[ Ionic | Covalent | Acid | Organic ]
Semester 1 Review
UNIT 3
• NAMING
ORGANIC COMPOUNDS
Fill in this chart of formulas and names of hydrocarbons:
C3H8
C5H10
nonene
C4H6
hexane
Draw the molecule for 2,3,3-trimethyloctane.
What is the name of this hydrocarbon?
Name the following compound:
Draw all the isomers for the compound on the left.
(There are three.)
H
H
H
Br
C
C
C
H
H
H
Br
Please
Register
Semester 1 Review
UNIT 3
• FUNCTIONAL
GROUPS
Label these pictures with the type of functional group:
Look at the carboxylic acid and the alcohol molecules. (1) Label these two molecules as “alcohol” and
“carboxylic acid”. (2) Draw a BOX around the atoms that will form H2O. (3) Draw the products that form.
(4) When they react, they form an ______________ .
Semester 1 Review
UNIT 4
• NAMING COMPOUNDS
Classify each compound as Ionic (I), Covalent (C), or Acid (A). Write the names or formulas for each compound.
Name
Type
Formula
Name
Type
Formula
Calcium chlorate
PCl5
Hydrochloric acid
(NH4)2S
Stannic dichromate
Fe3(PO4)2
Dinitrogen monoxide
H2CO3
Lead acetate
Na2SO4
Semester 1 Review
UNIT 4
• CONCENTRATIONS
Consider a solution of Ba(OH)2. Show your work for each of the following.

Calculate the concentration when 0.25 mol Ba(OH)2 is used to prepare a 120 mL solution.

Calculate the volume of a 1.20 M solution if 151.0 g Ba(OH)2 is dissolved.

How many mL of a 3.0 M Ba(OH)2 solution is required to prepare a 40.0 mL sample of 0.20 M solution?

Write the equation for how Ba(OH)2 dissolves in water.
Semester 1 Review
UNIT 4
• ACIDS/BASES
Match the terms with the following statements. Each term may be used once, more than once, or not at all.
a) acid
b) base
c) both acid and base
d) neither acid nor base
___ 1.
pH = 5
___ 9.
___ 2.
tastes bitter
___ 10. alkaline
___ 3.
electrolyte
___ 11. tastes sour
___ 4.
vinegar, HC2H3O2

milk of magnesia, Mg(OH)2
___ 12. turns cabbage juice blue, green, or yellow
___ 5.
increases [OH ]
___ 13. household ammonia
___ 6.
neutralizes NaOH
___ 14. pH = 7
___ 7.
feel slippery
___ 15. can burn your skin
___ 8.
Na2SO4
___ 16. high pH
A 1.0 x 10-4 M solution of HCl has a pH of _____ and a pOH of _____.
Semester 1 Review
UNIT 4
• ACIDS/BASES
Match the terms with the following statements. Each term may be used once, more than once, or not at all.
a) acid
b) base
c) both acid and base
d) neither acid nor base
___ 1.
pH = 5
___ 9.
milk of magnesia, Mg(OH)2
___ 2.
tastes bitter
___ 10. alkaline
___ 3.
electrolyte
___ 11. tastes sour
___ 4.
vinegar, HC2H3O2
___ 12. turns cabbage juice blue, green, or yellow
___ 5.
increases [OH]
___ 13. household ammonia
___ 6.
neutralizes NaOH
___ 14. pH = 7
___ 7.
feel slippery
___ 15. can burn your skin
___ 8.
Na2SO4
___ 16. high pH
A 1.0 x 10-4 M solution of HCl has a pH of _____ and a pOH of _____.