CHEMISTRY
Name: _______________________________________
MRS. MENTZER
MEASUARING AND COUNTING: A REVIEW OF MOLE CONCEPTS
 One per person!
 Use the correct number of sig figs
 Show all work for calculations!
PART 1:
Use the data table below:
Material
Name
Symbol
Physical
Appearance
Mass of
sample (g)
Molar Mass
(g/mol)
Carbon
Zinc
Copper
Tin
Aluminum
Nickel
Iron
Work for data table calculations: (at least 3 for each procedure must be shown)
Moles
(Show work)
Particles
(Show
Work)
PART 2:
Determine the mass of a nickel coin: _______________________g
A nickel coin is a mixture of metals called an alloy. It consists of 75% copper and 25% nickel.
1. How many grams of copper are in a nickel coin?
2. How many copper moles and particles are in 1 nickel?
3. How many grams of nickel are in a nickel coin?
4. How many nickel moles and particles are in 1 nickel?
PART 3:
Answer the following questions. Show work for at least 2 questions in EVERY section. Be sure to include units and
watch for sig figs!
A.
How many moles in the following substances? g - mol
a. 36.8 g Si
b. 0.892 g Fe
c. 3.40 x 10-3 kg Ca ***
d. 44.9 g C
e. 30.6 g K
f.
9.24 g Na
g. 78.8 g S
h. 43.3 kg He ***
i.
3.92 kg Ar ***
j.
10.0 kg Kr ***
B. How many grams in the following substances? mol - g
a. 3.20 moles Ag
b. 48.8 moles Au
c. 3.26 moles Ne
d. 1.11 moles Cr
e. 3.39 moles H
f.
8.63 moles Fe
g. 4.45 moles C
h. 26.9 moles N
i.
0.480 moles F
j.
0.0377 moles Mg
C. How many moles in the following substances? Particles - mol
a. 9.99 x 1024 particles H
b. 3.62 x 1023 particles He
c. 1.83 x 1025 particles Li
d. 3.62 x 1024 particles Na
e. 1.22 x 1023 particles K
f.
5.99 x 1020 particles Ar
g. 6.88 x 1026 particles Kr
h. 4.76 x 1021 particles B
i.
2.45 x 1022 particles Ne
j.
7.77 x 1024 particles Xe
D. How many grams in the following substances? Particles - g
a. 9.99 x 1024 particles Xe
b. 3.62 x 1023 particles Ne
c. 1.83 x 1025 particles B
d. 3.62 x 1024 particles Kr
e. 1.22 x 1023 particles Ar
f.
5.99 x 1020 particles K
g. 6.88 x 1026 particles Na
h. 4.76 x 1021 particles Li
i.
2.45 x 1022 particles He
j.
7.77 x 1024 particles H