The mole, determination of formula and calculations of reacting masses.

Question 1

Define the term mole

Answer 1

One mole is the amount of substance that contains 6.02x10^23 particles.

Question 2

Explain the term ‘amount of substance’.

Answer 2

Amount of substance is a quantity to count the number of particles in a substance, measure In mol.

Question 3

Explain the term ‘Avogadro’s constant.

Answer 3

Is 6.02x10^23 mol-1 the number of particles in each mole of Carbon-12.

Question 4

Explain the term ‘molar mass’.

Answer 4

Is the mass per mole of a substance.

Question 5

Define the term molecular formula

Answer 5

The number of atoms of each element in a molecule.

Question 6

What does hydrated mean in terms of crystals?

Answer 6

Water molecules are a part of their crystalline structure.

Question 7

Explain what is meant by one mole of a substance?

Answer 7

The amount of substance that contains as many particles as there are Carbon atoms in 12g of Carbon 12.