Mole/Molar Mass/Conversions

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

How do you calculate the number of molecules in a given number of moles?

Back

Number of molecules = moles × Avogadro's number (6.02 x 10^23).

Front

What is molar mass?

Back

Molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol).

Front

How do you convert moles to grams?

Back

Grams = moles × molar mass.

Front

What is the molar mass of NaCl?

Back

The molar mass of NaCl (sodium chloride) is approximately 58.44 g/mol.

Front

How many moles are in 1.204 x 10^24 molecules of CO?

Back

0.200 moles (calculated using the formula: moles = molecules / Avogadro's number).

Front

What is the molar mass of H2O?

Back

The molar mass of H2O (water) is 18 g/mol.

Front

How do you find the mass of a substance from moles?

Back

Mass = moles × molar mass.

Front

What is the mass of 2 moles of CO2?

Back

The mass of 2 moles of CO2 is 88 grams (molar mass of CO2 is 44 g/mol).

Front

How many grams are in 0.5 moles of CaCl2?

Back

The mass of 0.5 moles of CaCl2 is 73.5 grams (molar mass of CaCl2 is 147 g/mol).