WorksheetsSemester 1 Mini-Review: Formulas, Molar Mass, Moles
Total questions: 10
Worksheet time: 26mins
Name
Class
Date
1.
What is the molar mass of AuCl3?
a)
107 g
b)
232 g
c)
215 g
d)
304 g
2.
How many moles are present in 32.3 grams of carbon dioxide (CO2)?
a)
44.0 moles
b)
1420 moles
c)
1.36 moles
d)
0.734 moles
3.
What is the mass in grams of 5.90 mol C8H18?
a)
.0512 g
b)
19.3 g
c)
673 g
d)
389 g
4.
How many moles are in 98.3 g of aluminium hydroxide?
a)
0.794 mol
b)
1.26 mol
c)
2.23 mol
d)
7670 mol
5.
How many grams are in 3.30 moles of potassium sulfide?
a)
208 g
b)
234 g
c)
0.0300 g
d)
363 g
6.
What is the mass of 1.05 mole of AlCl3?
a)
134g
b)
62.5g
c)
140.g
d)
97.9g
7.
What is the molar mass of CO2?
a)
12
b)
38
c)
28
d)
44
8.
What is the correct formula for the compound, lithium nitride?
a)
LiN
b)
Li3N
c)
LiN3
d)
Li3N2
9.
What is the formula for manganese (III) oxide?
a)
MgO
b)
Mg2O3
c)
Mn3O
d)
Mn2O3
10.
What is the chemical formula for Tetrasulfur pentoxide?
a)
SO
b)
S4O
c)
S4O5
d)
S5O4
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