Use a periodic table to complete this review. DO NOT use a calculator, since you are not allowed one on tests and quizzes.
Standards
Students know one mole equals 6.02 x 1023 particles (atoms or molecules).
Students know how to determine the molar mass of a molecule from its chemical formula and a table of atomic masses and how to convert the mass of a molecular substance to moles, number of particles, or volume of gas at standard temperature and pressure.
What is the mass of two moles of gas propane gas, C3H8?
44 grams
88 grams
22 grams
11 grams
What volume would be occupied by two mole of propane gas, C3H8, at standard conditions?
44.8 liters
88 liters
22. 4 liters
11.2 liters
How many moles of propane gas, C3H8, are contained in 11 grams of the gas at standard conditions?
0.25 moles
1.5 x 1023 moles
4 moles
11 x 1023 moles
What is the mass in grams of 3 moles of water molecules, H2O?
54 grams
6 grams
0.166 grams
21 grams
How many molecules are contained in 3 moles of water molecules, H2O?
54 molecules
6 molecules
1.8 x 1024 molecules
3 x 1023 molecules
What is the mass of 4 moles of hydrogen molecules (H2)?
0.5 grams
8 grams
2 grams
4 grams
What volume is occupied by 4 moles of hydrogen molecules (H2) at standard conditions?
89.6 liters
72 liters
5.6 liters
2.4 x 1024 molecules
How many moles of hydrogen molecules (H2) are present in 9 x 1023 molecules of hydrogen?
9 x 1023 moles
1.5 moles
1.8 x 1024 moles
4.5 x 1023 mole
What is the mass in grams of 10 moles of ammonia, NH3?
1.7 grams
170 grams
0.587 grams
27 grams
What volume is occupied by 10 moles of ammonia, NH3, at standard conditions?
170 liters
6 x 1024 liters
224 liters
32.4 moles
How many molecules of ammonia are contained in 10 moles of ammonia, NH3?
6 x 1024 molecules
6 x 1022 molecules
170 molecules
27 molecules
How many moles of water molecules, H2O, are present in a 27 gram sample of water?
2 moles
2/3 mole
1.5 moles
9 x 1023 moles
How many moles of methane molecules, CH4, are in 80 grams of methane?
0.201 moles
5 moles
80 x 1023 moles
6.02 x 1080 moles
How many moles of methane gas molecules, CH4, are in 11.2 liters of methane at standard conditions?
0.5 moles
11.2 moles
27.2 moles
179.2 moles
What is the volume occupied by 40 grams of argon gas (Ar) at standard conditions?
1 liter
22.4 liters
6.02 x 1023 liters
896 liters
How many atoms are contained in 10 grams of argon gas (Ar)?
10 atoms
1.5 x 1023 atoms
6 x 1024 atoms
6 x 1022 atoms
How many moles of ethane gas, C2H6 are in 15 grams of the compound?
0.5 moles
2 moles
3 x 1023 moles
45 moles
About how many atoms of helium would be found in 2 grams of helium?
6 x 1023
3 x 1023
2
4.00
A sample of carbon dioxide gas (CO2) contains 6 x 1022 atoms. How many moles of carbon dioxide does this represent?
1/10 mole
10 moles
4.4 moles
440 moles
Approximately how many atoms of carbon are present in a 120 gram sample of carbon?
6 x 1024 atoms
6 x 1022 atoms
10 atoms
1440 atoms
How many moles of argon gas (Ar) are present in 5.6 liters of argon gas at standard conditions?
0.25 moles
5.6 moles
4 moles
28 moles
What volume would be occupied by 120 grams of argon gas (Ar) at standard conditions?