Topic 6 Day 3 Molar 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.) of a substance.

Front

How do you convert molecules to moles?

Back

To convert molecules to moles, divide the number of molecules by Avogadro's number (6.02 x 10^23).

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 grams to moles?

Back

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

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 calculate the number of molecules in a given mass of a substance?

Back

First, convert grams to moles using the molar mass, then multiply the number of moles by Avogadro's number.

Front

What is the relationship between moles and atomic mass?

Back

The atomic mass of an element (in g/mol) is numerically equal to the mass of one mole of that element.

Front

How many moles are in 1.5 x 10^24 molecules of CO2?

Back

1.5 x 10^24 molecules of CO2 is equal to 2.49 moles (1.5 x 10^24 / 6.02 x 10^23).

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.

Front

What is the formula to find the number of atoms in a mole of a compound?

Back

Number of atoms = moles x Avogadro's number x number of atoms per molecule.