Front

What is a mole?

Back

A mole is a unit of measurement in chemistry that represents 6.02 x 10^23 particles (atoms, molecules, ions, etc.).

Front

What is Avogadro's number?

Back

Avogadro's number is 6.02 x 10^23, which is the number of particles in one mole of a substance.

Front

How do you calculate the mass of a substance in grams from moles?

Back

Mass (g) = Moles x Molar Mass (g/mol).

Front

What is the molar mass of aluminum (Al)?

Back

The molar mass of aluminum is 26.982 g/mol.

Front

How many grams are in 2.4 moles of sulfur (S) if its molar mass is 32 g/mol?

Back

Mass = 2.4 moles x 32 g/mol = 76.8 g.

Front

How do you convert atoms to moles?

Back

Moles = Number of Atoms / Avogadro's Number.

Front

How many moles are in 3.01 x 10^22 atoms of magnesium (Mg)?

Back

Moles = 3.01 x 10^22 atoms / 6.02 x 10^23 = 0.050 moles.

Front

What is the formula to convert grams to moles?

Back

Moles = Mass (g) / Molar Mass (g/mol).

Front

What is dimensional analysis in chemistry?

Back

Dimensional analysis is a method used to convert units by multiplying by conversion factors.

Front

What is the molar mass of sulfur (S)?

Back

The molar mass of sulfur is 32.07 g/mol.