WorksheetsMolar Mass - 1 step
Total questions: 25
Worksheet time: 4hrs 10mins
Determine the molar mass of the following substance: Na(ClO₃).
106.44 g
122.44 g
150.44 g
180.44 g
Determine the molar mass of the following substance: Na₂S.
78.05 g
60.05 g
90.05 g
100.05 g
Determine the molar mass of the following substance: (NH₄)₂(SO₄).
132.17 g
118.14 g
150.21 g
142.13 g
How many moles are equal to 89.23 g of calcium oxide, CaO?
1.00 moles
1.25 moles
1.60 moles
2.00 moles
How many grams are equal to 3.46 moles of sodium sulfide, Na₂S?
150.1 grams
222.2 grams
276.5 grams
300.3 grams
How many moles are equal to 13.25 g of barium permanganate, Ba(MnO₄)₂?
0.035 moles
0.050 moles
0.075 moles
0.100 moles
How many moles are equal to 45.67 g of aluminum chloride, AlCl₃?
0.456 moles
0.678 moles
0.342 moles
0.567 moles
Determine the molar mass of the following substance: K₂SO₄.
150.24 g
174.26 g
180.30 g
160.20 g
How many grams are equal to 2.50 moles of magnesium carbonate, Mg(CO₃)?
150.8 grams
200.0 grams
210.8 grams
188.0 grams
Calculate the molar mass of Mg(OH)2.
42.33 g/mol
41.32 g/mol
82.64 g/mol
58.33 g/mol
Which of the following statements regarding the mole is INCORRECT?
A mole is a unit of quantity equal to 6.02 x 1023 particles.
The number of particles in a mole is known as Avogadro’s number.
A mole of particles of an element is numerically equal to the atomic mass of the element.
none of the above
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.
How many formula units are in 2.5 moles of NaCl?
1.5 x1024 formula units
1.5 formula units
4.2 formula units
4.2 x10-24 molecules
Determine the mass of 4.20 moles of C6H12
353 g
0.0499 g
337 g
2.53 x 1024 g
How many molecules of AlCl3 are in 9.44 moles of AlCl3?
5.68 molecules
5.68x1024 molecules
0.705 molecules
1.25x1023 molecules
How many molecules are there in 5.9 moles of NaCl?
3.5x1024 molecules
9.80x10-24 molecules
1.02x1023 molecules
6.02x1023 molecules
Which of the following dimensional analysis setups will correctly convert 4.00x1023atoms of cobalt to moles of cobalt? How many moles of colbalt are there?
setup B : 0.664 mol Co
setup A: 2.41x1047mol Co
setup A : 0.664 mol Co
setup B: 2.41x1047mol Co
