The Mole
What is a mole in chemistry?
What is a counting unit representing 6.022 x 10²³ particles?
What does molar mass mean?
What is the mass in grams of one mole of a substance?
Convert 1 mole of oxygen gas to liters at STP.
What is 22.4 liters?
What is percent composition?
What is the percent by mass of each element in a compound?
What is the difference between an empirical formula and a molecular formula?
What is the empirical formula is the simplest ratio, and the molecular formula shows the actual number of atoms?
How many particles are in one mole of a substance?
What is 6.022 x 10²³ particles?
What is the molar mass of NaCl?
What is 58.44 grams per mole?
Convert 36.0 grams of water to moles. Round to the nearest whole number.
What is 2.00 moles?
Find the percent composition of hydrogen in H₂O.
What is 11.2%?
What is the empirical formula of C₄H₁₀?
What is C₂H₅?
What is the molar mass of H₂O?
What is 18.02 grams per mole?
Calculate the molar mass of C₆H₁₂O₆.
What is 180.18 grams per mole?
How many atoms are in 4.00 grams of helium?
What is 6.022 x 10²³ atoms?
Calculate the percent composition of carbon in CO₂.
What is 27.3%?
Find the empirical formula of a compound that is 25.9% nitrogen and 74.1% oxygen.
What is N₂O₅?
Convert 3.00 mol of CO₂ to molecules.
What is 1.81 x 10²⁴ molecules?
How many grams are in 2.50 mol of H₂SO₄?
What is 245.23 grams?
Convert 5.00 x 10²² molecules of CO₂ to grams.
What is 3.66 grams?
A compound is 40% carbon, 6.7% hydrogen, and 53.3% oxygen. What is its empirical formula?
What is CH₂O?
The empirical formula of a compound is CH₂O and its molar mass is 180 g/mol. What is its molecular formula?
What is C₆H₁₂O₆?
You have 6.022 x 10^23 atoms of iron. How many moles do you have?
What is 1 mole?
A compound contains 2.00 mol of nitrogen and 6.00 mol of hydrogen. What is the mass of the compound?
What is 42.12 grams?
How many liters are occupied by 3.00 mol of nitrogen gas at STP?
What is 67.2 liters?
A sample has 70 grams of Fe and 30 grams of O. What is the percent composition of iron?
What is 70%?
A compound is found to be 85.7% carbon and 14.3% hydrogen. Find its empirical formula.
What is CH₂?