1C Mole Calculations

Question 1

Molar mass

Answer 1

The mass per mole of a substance; it has the symbol M and the units g mol-1

Question 2

Avogadro constant(L)

Answer 2

6.02 X 10^23 mol-1, the number of particles in one mole of a substance

Question 3

Relative Atomic Mass(Ar)

Answer 3

Mean mass of an atom of an element/1/12 of the mass of an atom of Carbon-12

Question 4

Relative Molecular Mass(Mr)

Answer 4

The sum of the Relative Atomic Mass of each atom in the molecule

Question 5

Relative Formular Mass(Mr)

Answer 5

The sum of the Relative Atomic Mass of each atom in the molecule, including both molecule and ions

Question 6

The expression of Molar Mas

Answer 6

n=m/M

Question 7

Mole

Answer 7

A mole is the amount of substance that contains the same number of particles as the number of carbon atoms in exactly 12g of the 12C isotope.