WorksheetsThe Mole Review
Total questions: 7
Worksheet time: 30mins
How many molecules are in 2.5 mol of NaCl?
1.50 x1024 molecules
1.50 molecules
4.15 molecules
1.51 x1024 molecules
Calculate the number of atoms in 0.0340 g Zn. (mm Zn = 65.409 g)
5.20 x 10-4 atoms Zn
3.13 x 1023 atoms Zn
3.13 x 1020 atoms Zn
1 atom Zn
How many moles are in 19.82 g Mg? (mm Mg = 24.305 g)
1.23 mol Mg
481.70 mol Mg
1.00 mol Mg
0.82 mol Mg
Determine the molar mass for carbon tetrachloride (CCl4).
153.81 g/mol
118.37 g/mol
189.35 g/mol
47.46 g/mol
How many grams are in 1.2 x 1024 atoms of C? (mm C = 12.011g)
29.34 grams
23.94 grams
6.02 grams
1.21 grams
What is the percent composition by mass of sulfur (S) in the compound MgSO4? (mm MgSO4 = 120.366 g/mm S = 32.06 g)
20.22%
19.85%
26.64%
28.64%
Determine the mass in grams found in 3.5 moles of calcium. (mm Ca = 40.078 g)
21.07 g
0.58 g
140.28 g
114.51 g
