General knowledge
Molar Mass
Conversions
Mole Challenge
Chemical Equations & Moles
100

The number of particles in one mole.

What is 6.022 × 10²³?

100

The unit of molar mass.

What is grams per mole (g/mol)?

100

Number of grams in 1 mole of oxygen gas (O₂).

What is 32 grams?

100

One mole of any gas at STP occupies this volume.

What is 22.4 liters?

100

Number of moles of O₂ required to burn 1 mole of CH₄ completely.

What is 2 moles?

200

The name of this constant is used to count particles in a mole.

What is Avogadro’s number?

200

The molar mass of water (H₂O).

What is 18 g/mol?

200

Number of moles in 12 grams of carbon (C).

What is 1 mole?

200

This is the number of atoms in 2 moles of magnesium.

What is 1.204 × 10²⁴ atoms?

200

In the equation 2H₂ + O₂ → 2H₂O, the mole ratio of H₂ to H₂O.

What is 1:1?

300

The SI base unit for the amount of substance.

What is the mole?

300

The molar mass of carbon dioxide (CO₂).

What is 44 g/mol?

300

Convert 2 moles of NaCl to grams.

What is 117 grams?

300

The number of molecules in 36 grams of water.

What is 1.204 × 10²⁴ molecules?

300

This law relates moles and volume for gases at constant temp and pressure.

What is Avogadro’s Law?

400

The type of particles a mole can count (name two).

 What are atoms, molecules, ions, or formula units?

400

How to find the molar mass of a compound.

What is adding the atomic masses of each element in the formula?

400

 Convert 3.01 × 10²³ molecules of H₂ to moles.

What is 0.5 moles?

400

Calculate the percent composition of oxygen in H₂O.

What is 89%?

400

In a balanced equation, mole ratios come from these numbers.

What are coefficients?

500

The scientist after whom the mole constant is named.

Who is Amedeo Avogadro?

500

How many moles of salt are in 13.8g of sodium chloride? 

What is 0.236 Moles?
500

Convert 10 grams of methane (CH₄) to number of molecules.

What is 3.76 × 10²³ molecules?

500

How many atoms are in 4.5 moles of Al₂(SO₄)₃? 

What is 1.627 × 10²⁵ atoms?

500

If 3 moles of Fe react with O₂ to make Fe₂O₃, how many moles of Fe₂O₃ form?

What is 1.5 moles?