The Mole
Avogadro's number
What is 6.022 x 1023?
The number of atoms in 8.92 moles of sodium.
What is 5.37 x 1024 atoms?
The mass of 3.67 moles of iron.
What is 204.97 grams?
A mining company obtains 450 kg of iron from 1257 kg of iron ore. The percent composition of iron in the ore is _____.
What is 35.8%?
The mass of one mole of aluminum.
What is 26.98 grams?
The number of molecules in 5.32 moles of KMnO4.
The number of moles in 100 grams of carbon monoxide.
What is 3.57 moles?
(CO)
The mass percent of carbon in carbon dioxide.
What is 27.3%?
(CO2)
The mass of one mole of carbon dioxide.
What is 44.01 grams?
(CO2)
The mass in grams of 3.78 x 1022 atoms of gold.
What is 12.36 grams?
The number of atoms in 25.69 grams of helium.
What is 3.87 x 1024 atoms?
The empirical formula of a compound containing 22.2% carbon, 3.74% H, and 74.0% oxygen.
What is C2H4O5?
The molar mass of sodium sulfate.
What is 142.04 g/mol?
The number of grams in 7.76 x 1024 molecules of water.
What is 232.2 grams?
The number of molecules in 24.22 grams of sodium oxide.
What is 2.35 x 1023 molecules?
(Na2O)
What is S5O10?
The number of moles of hydrogen in 6 moles of acetic acid.
What is 24?
(HC2H3O2)
The number of oxygen atoms in 65.4 grams of oxygen gas?
What is 2.46 x 1024 atoms?
The number of grams in 3.45 x 1026 molecules of carbonic acid.
What is 35537 grams?
(H2CO3)
The molecular formula of a compound that is 38.7% carbon, 9.76% hydrogen, and 51.5% oxygen and has a molar mass of 93.12 g/mol.
What is C3H9O3?
(Emprical formula = CH3O)