NEW
Font size
S
M
L
XL
WorksheetsThe Mole
Total questions: 9
Worksheet time: 5mins
Name
Class
Date
1.
A mole of Lithium is________ to a mole of Carbon.
a)
less than
b)
equal to
c)
greater than
d)
sometimes the same as
2.
A mole is like...
a)
a dozen
b)
a box of chocolates
c)
an animal
d)
a beauty mark
3.
One mole is equal to:
a)
6.02 x 1023 atoms
b)
602 hexillion things
c)
the molar mass of an element
d)
all of the above
4.
How many grams is in 6.23 mol of Oxygen?
a)
16 grams
b)
3.75 x 1024 grams
c)
99.68 grams
d)
3.75 x 1024 atoms
5.
If I have 8.25 x 1024 atoms of Bromine, how many moles of Br do I have?
a)
4.97 x 1048 atoms
b)
4.97 x 1048 moles
c)
13.7 atoms
d)
13.7 moles
6.
What is the percent composition of Ca in CaCl2 ?
a)
36.6%
b)
63.4%
c)
52%
d)
48%
7.
What is the molecular formula for a compound with a molar mass of 68g/mol and an empirical formula of H2O2 ?
a)
H4O4
b)
HO
c)
H2O4
d)
H4O2
8.
Which of the following empirical formulas is correctly matched with its molecular formula?
a)
H2O and H2O2
b)
LiBr and Li5Br4
c)
CaCl2 and Ca3Cl6
d)
NaCl and Na2Cl
9.
What is the empirical formula for a compound containing 94.1% Oxygen and 5.9% Hydrogen?
a)
HO2
b)
HO1.0001
c)
OH
d)
OH1.0001
Reset
