3.1 amount of substance and the mole

Question 1

Amount of substance is measured in …..

Answer 1

moles (mol)

Question 2

Amount of substance (n)=

Answer 2

mass (m)g / molar mass (M) g/mol

Question 3

Avogadro’s constant

Answer 3

6.02x10^23

Question 4

How do you calculate

Number of particles NA

Answer 4

number of moles (n) X 6.02x10^23

Question 5

The mass of 1 mole of an element is the same as the …….. in grams

Answer 5

relative atomic mass