Mole conversions/counting atoms flashcardizz

Front

What is a mole in chemistry?

Back

A mole is a unit of measurement used to express the amount of a substance. It is defined as the amount of substance that contains as many entities (atoms, molecules, etc.) as there are in 12 grams of carbon-12.

Front

How do you calculate the molar mass of a compound?

Back

To calculate the molar mass, sum the atomic masses of all the atoms in the compound's formula, using the periodic table.

Front

What is Avogadro's number?

Back

Avogadro's number is 6.022 x 10^23, which is the number of atoms, molecules, or particles in one mole of a substance.

Front

How many atoms are in one mole of any element?

Back

One mole of any element contains Avogadro's number of atoms, which is 6.022 x 10^23.

Front

What is the formula to convert grams to moles?

Back

The formula is: Moles = Mass (g) / Molar Mass (g/mol).

Front

What is the sea of electrons model?

Back

The sea of electrons model describes metallic bonding, where electrons are delocalized and free to move around, allowing metals to conduct electricity.

Front

How many oxygen atoms are in Mg(NO3)2?

Back

There are 6 oxygen atoms in Mg(NO3)2.

Front

What type of bond is formed in SF2?

Back

SF2 forms a covalent bond.

Front

What is the molar mass of silver (Ag)?

Back

The molar mass of silver (Ag) is 107.87 g.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electrons between atoms.