Front

What is a mole in chemistry?

Back

A mole is a unit of measurement used to express amounts of a chemical substance, defined as exactly 6.022 x 10^23 particles (atoms, molecules, ions, etc.).

Front

How do you convert molecules to grams?

Back

To convert molecules to grams, use the formula: grams = (number of molecules / Avogadro's number) x molar mass.

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

What is the molar mass of CO (carbon monoxide)?

Back

The molar mass of CO is approximately 28.01 g/mol.

Front

How many grams are in 1 mole of Zn (zinc)?

Back

1 mole of Zn has a mass of approximately 65.38 g.

Front

What is the mass of 1 mole of C6H12O6 (glucose)?

Back

1 mole of C6H12O6 has a mass of approximately 180.18 g.

Front

How do you calculate the number of moles from grams?

Back

To calculate moles from grams, use the formula: moles = grams / molar mass.

Front

What is the mass of 4.98 x 10^24 atoms of Zn?

Back

The mass is 541 g.

Front

How many molecules are in 1 mole of any substance?

Back

There are 6.022 x 10^23 molecules in 1 mole of any substance.

Front

What is the mass of 1 mole of silver (Ag)?

Back

1 mole of silver has a mass of approximately 107.87 g.