Honors Mole 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

What is STP in chemistry?

Back

STP stands for Standard Temperature and Pressure, which is defined as 0 degrees Celsius (273.15 K) and 1 atmosphere of pressure.

Front

How many liters does one mole of gas occupy at STP?

Back

One mole of an ideal gas occupies 22.4 liters at STP.

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 convert moles to grams?

Back

To convert moles to grams, multiply the number of moles by the molar mass of the substance (g/mol).

Front

How do you convert grams to moles?

Back

To convert grams to moles, divide the mass in grams by the molar mass of the substance (g/mol).

Front

What is the molar mass of water (H2O)?

Back

The molar mass of water is approximately 18.02 g/mol.

Front

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

Back

Multiply the number of moles by Avogadro's number (6.02 x 10^23).

Front

What is the mass of 1 mole of carbon (C)?

Back

The mass of 1 mole of carbon is approximately 12.01 g.

Front

How do you calculate the number of atoms in a sample?

Back

To calculate the number of atoms, multiply the number of moles by Avogadro's number.