stoichiometry

Question 1

One mole

Answer 1

is defined as the amount of substance having the same number of particles as there are atoms
in 12 g carbon-12.

Question 2

Molar mass

Answer 2

is the mass of one mole of a substance measured in gmol–1

Question 3

Concentration

Answer 3

is the number of moles of solute per cubic decimetre of solution.

Question 4

empirical formula

Answer 4

is the simplest whole-number ratio of atoms in a compound.

Question 5

molecular formula

Answer 5

is a formula that shows all the atoms in a compound.