Understanding Moles and Avogadro's Number

Front

What is Avogadro's Number?

Back

6.02 x 10^23

Front

How many particles are in one mole?

Back

6.02 x 10^23 particles

Front

What is another name for 6.02 x 10^23?

Back

Avogadro's number

Front

What is the mass of 1 mole of sodium?

Back

22.99 grams

Front

What is the value of Avogadro's number?

Back

6.022 x 10^23

Front

Define a mole in chemistry.

Back

A mole is a unit that measures the amount of substance, defined as containing exactly 6.022 x 10^23 particles.

Front

What is the relationship between moles and particles?

Back

1 mole contains 6.02 x 10^23 particles.

Front

What is the significance of Avogadro's number in chemistry?

Back

It allows chemists to count particles by weighing them.

Front

How do you convert grams to moles?

Back

Divide the mass of the substance (in grams) by its molar mass.

Front

What is the molar mass of sodium?

Back

Approximately 22.99 g/mol.