Relative formula mass

Question 1

What is relative formula mass/

Answer 1

• Sum of the relative atomic masses of the atoms in the number of the formula.
• No units.
• Never involves big numbers.
  Mr.

Question 2

How do we work it out?

Answer 2

• Substitue the relative atomic mass into the formula and add them together.
• we do not use big numbers to calculate relative formula mass.