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WorksheetsCombined Practice % and Mole
Total questions: 10
Worksheet time: 23mins
Acetone, C3H6O, is a solvent. How many moles of acetone are in 5.00 grams of acetone?
58.05 g
12.011 g
5.19 x 1022 g
0.0861 g
How many grams of potassium sulfate are in 0.623 mol K2SO4?
174.3 g
108.59 g
3.75 x 1023 g
39.10 g
Calculate the percent composition of each element in CH3NH2.
16.23% C, 45.11% H, 38.67% N
45.11% C, 38.67% H, 16.23% N
38.67% C, 16.23 % H, 45.11 %N
12.01% C, 5.04% H, 14.01% N
You have 7.63 moles of Ca3(PO4)2. How many grams of metal ions do you have?
2366.61 g
976.58 g
472.60 g
917.43 g
Calculate the percent by mass of chlorine in SrCl2.
44.73%
55.27 %
28.81 %
15.85 %
Which compound has the smallest percent of chlorine?
KClO
KClO2
KClO3
KClO4
Which mass is equivalent to 755 kg?
7.55 x 10 -3 g
7.55 x 10 -1 Mg
7.55 x 10 6 Mg
7.55 x 10 3 mg
Which compound contains 63% metal?
UF6
NaCl
Ag2S
MnO2
Calculate the number of moles of carbon in a 1.271 g sample of C2H5OH.
0.02759 mol
0.05518 mol
0.01957 mol
0.03426 mol
Which material has the highest percentage of oxygen?
C2H6O
C8H10N4O2
C20H42
O2
