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WorksheetsMole Conversions
Total questions: 21
Worksheet time: 5hrs 15mins
If an atom of Fluorine has an atomic mass of 19 amu, it has a molar mass of ____
19 lbs.
19 kg
How am I supposed to know?
19 g/mol
Which of the following dimensional analysis setups will correctly convert 27.76 g of Li to atoms of Li?
A
B
C
D
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 molecules of water are in a 821.3 g sample?
45.58 molecules
8.232 x 1025 molecules
8.909 x 1027 molecules
2.744 x 1025 molecules
What is the mass of 4.98 x 1024 atoms of Zn?
541 g
8.27 g
.122 g
4.59 x 1046 g
How many moles of sodium chloride are in a 321.8 g sample?
18810 moles
3.315 x 1024 moles
5.507 moles
4.767 moles
How many formula units of calcium chloride are in a 25.69 g sample?
1.394 x 1023 F.U.'s
2851 F.U.'s
.2315 F.U.'s
3.845 x 1025 F.U.'s
Convert 86.235 g of diphosphorus pentaoxide to moles.
12240 moles
1.8747 moles
.608 moles
.60755 moles
How many atoms are contained in a 456 g sample of carbon dioxide?
10.34 atoms
6.237 x 1024 atoms
1.871 x 1025atoms
2.079 x 1024 atoms
What would be the mass of 9.76 x 1022 formula units of SrCl2?
.1622 g
25.7 g
20.0 g
.3589 g
A sample of AlCl3 contains a total of 4.515 x 1027 atoms of chlorine. What must be the mass of this sample?
2.500 x 105 g
1.000 x 106 g
18.75 g
3.333 x 105 g
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
How many moles are in 98.3 grams of aluminum hydroxide, Al(OH)3?
1.26 moles
0.8 moles
7,670 moles
1.63 x 10-22 moles
How many molecules of sugar (C6H12O6) are in a mole of sugar?
24 molecules
180 molecules
180 g
6.02 x 1023 molecules
