WorksheetsConversion Mole Particles
Total questions: 17
Worksheet time: 33mins
Name
Class
Date
1.
Find the Molar Mass of:
Ga2(SO3)3
Ga2(SO3)3
a)
280.75 g/mol
b)
400.83 g/mol
c)
379.65 g/mol
d)
480.93 g/mol
2.
How many particles are there in 31.8 moles?
a)
5.28 x 10-23 particles
b)
1.91 x 1025 particles
c)
5.28x 10-25 particles
d)
1.91 x 1022 particles
3.
How many moles are 2.85 x 1020 atoms of iron?
a)
0. 0004moles
b)
1.7moles
c)
0.00moles
d)
473 moles
4.
How many moles of copper are 4.57 x 1015 atoms of copper?
a)
8 x 10-9 moles
b)
2.75 x 10-33 moles
c)
8 x 109 moles
d)
2.75 x 1033 moles
5.
Avogadro's number of representative particles is equal to one_____.
a)
kilogram
b)
gram
c)
kelvin
d)
mole
6.
What is the molar mass of AuCl2?
a)
96 g
b)
130 g
c)
232.5 g
d)
267.87 g
7.
A mole of carbon disulfide contains 6.02 x 1023 _____.
a)
atoms
b)
formula units
c)
ions
d)
molecules
8.
How many particles are in a mole?
a)
602
b)
602 million
c)
602 moles
d)
6.02 x 1023
9.
Determine the amount of moles in 4.50 x 1023 atoms of fluorine.
a)
9.03 x 1046 moles
b)
0.747 moles
c)
4.73 moles
d)
0.0131 moles
10.
Determine the number of
atoms in
0.50 moles of zinc.
atoms in
0.50 moles of zinc.
a)
3.01 x 1023 atoms
b)
4.15 x 10-24 atoms
c)
2.71 x 10-22 atoms
d)
303 atoms
11.
What is the molar mass of CaCl2?
a)
24.31 g/ml
b)
111.21 g/mol
c)
59.76 g/mol
d)
70.90 g/mol
12.
Convert 1.5 moles of beryllium oxide to molecules
a)
25.01 molecules
b)
9.0 x 1023 molecules
c)
0.12 molecules
d)
1.80 x 1024 molecules
13.
Five moles of Cl2 has the same particles in five moles of O2
a)
True
b)
False
14.
Which list of number of atoms in Mg(NO2)2 is right?
a)
Mg : 1--NO : 2
b)
Mg : 1-- N : 6--O: 2
c)
Mg : 1-- N: 1-- O: 2
d)
Mg : 1-- N: 2-- O: 4
15.
Which list of number of atoms in K3PO3 is right?
a)
K : 3--PO : 3
b)
K :3--P : 1--O: 3
c)
K : 3-- P: 4--O: 1
d)
K : 3-- P: 5--O: 4
16.
How to calculate molar mass of CO2?
a)
12+2x16 =44
b)
12+16=28
c)
2x12+2x16=56
d)
4+6=10
17.
How many formula units are there in 5.5 moles potassium chloride?
a)
4.08 x 10-24
b)
3.31 x 1024
c)
33.11
d)
0.98
100 %
