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WorksheetsMoles
Total questions: 15
Worksheet time: 8mins
A mole measures an amount of substance based on the number of ...
grams
liters
particles
electrons
A particle can be ...
atoms
molecules
formula units
all of these
A diatomic element is one that...
when found in nature it is radioactive
when found in nature it is bonded to itself in pairs
when found in nature it has extra electrons
is never found in nature
One mole of any element (except the 7 diatomic elements) is equal to ________________ in grams.
The atomic number
The average atomic mass
The number of protons
All of these
The molar mass of a diatomic element is equal to ...
The average atomic mass multiplied by 2
The average atomic multiplied by itself (squared)
The average atomic mass
The atomic number multiplied by 2
Which of the following elements is a diatomic element?
hydrogen
carbon
neon
sulfur
Which of the following are the correct units for molar mass?
amu
g
mol
g/mol
Which of the following is the correct molar mass for carbon?
12.011 g
12.011 g/mol
24.022 g
24.022 g/mol
Which of the following is the correct molar mass for chlorine?
138.916 g/mol
35.453 g/mol
70.906 g/mol
1,256.9 g/mol
How many oxygen atoms are there in one formula unit of Zn(NO3)2?
1
3
5
6
How many nitrogen atoms are there in one formula unit of Zn(NO3)2?
1
2
3
5
How many zinc atoms are there in one formula unit of Zn(NO3)2?
1
2
3
5
What is the molar mass of BCl3?
117.169 g/mol
138.789 g/mol
403.536 g/mol
44,572.2 g/mol
What is the molar mass of Fe(OH)3?
72.854 g/mol
74.87 g/mol
106.868 g/mol
218.562 g/mol
What is the molar mass of Cr2(CO3)3?
211.997 g/mol
236.019 g/mol
284.016 g/mol
2,883.6 g/mol
