WorksheetsMoles and Mole Conversions (REG)
Total questions: 21
Worksheet time: 1hrs 18mins
What is the molar mass of PbSO4?
303.27 g/mol
255.27 g/mol
163.87 g/mol
372.27 g/mol
How many molecules are there in 31.8 moles of water? Must show your work or ZERO credit.
1.76 molecules
573 molecules
Determine the mass (grams) of 4.20 moles of C6H12
Must show your work or ZERO credit.
354 g
0.0499 g
6.98 x 10-24 g
2.53 x 1024 g
Which of the following dimensional analysis setups will correctly convert 27.76 g of Li to atoms of Li?
A
B
C
D
How many grams are in 1.2 moles of neon (Ne)? Must show your work or ZERO credit.
0.059 grams
7.2 x 1023 grams
1.99 x 10-24 grams
24 grams
How many moles are in 98.3 grams of aluminum hydroxide, Al(OH)3? Must show your work or ZERO credit.
1.26 moles
0.8 moles
7,669 moles
1.63 x 10-22 moles
Which of the following dimensional analysis setups will correctly convert 4.00 x 1023 atoms of cobalt to moles of cobalt? How many moles of cobalt are there?
setup B : 0.664 mol Co
setup A: 2.41 x 1047 mol Co
setup A : 0.664 mol Co
setup B: 2.41 x 1047 mol Co
What is the molar mass of table salt (NaCl)? Read all options! Be careful!
58.44 amu
35.45 g/mol
22.99 g/mol
58.44 g/mol
How many moles are in 3.01 x 1022 atoms of magnesium? Must show your work or ZERO credit.
1.24 x 1021 moles
7.31 x 1023 moles
1.81 x 1046 moles
Avogadro’s number is:
6.02 x 1022
6
6.02 x 1023
3.01 x 1023
How many water molecules are in 5.2 moles of water? Must show your work or ZERO credit.
6.0 x 1023 molecules
5.2 molecules
3.1 x 1024 molecules
8.6 x 10-24 molecules
What is the molar mass of Ca(NO3)2?
148.096 g
164.086 g
102.055 g
70.084 g
The mass of one mole of an element is equal to
its atomic number from the periodic table, but in amus.
its atomic mass from the periodic table, but in amus.
its atomic mass from the periodic table, but in grams.
its atomic number from the periodic table, but in grams.
When comparing a mole of oxygen and a mole of sulfur, how many atoms does each have?
oxygen has 16 grams of atoms
sulfur has 32.06 grams of atoms
both contains 6.02 x 1023 atoms
can not be determined
1 mole of Li
1 mole of Au
1 mole of Si
None, all are equal
53
63.55g
126.9
6.02 x 1023
A mole = Avogadro's number = 6.02 x1023
true
false
Molar number
Scientist's number
Which of the following statements regarding the mole is correct?
A mole is a counting unit equal to 6.02 x 1023 particles.
The number of particles in a mole is known as Avogadro’s number.
1 mole = Avogdro's number
all of the above
How many atoms of carbon are in 6.00g of carbon? Must show your work or ZERO credit.
1.20 x 1024 atoms C
3.61 x 1024 atoms C
3.01 x 1023 atoms C
9.97 x 10-24 atoms C
