Relative Formula Mass Flashcards
All 3 cards in this deck
What is the relative formula mass () of a compound?
The sum of the relative atomic masses of all the atoms shown in its formula.
What is the equation for the percentage by mass of an element in a compound?
percentage by mass = (relative atomic mass × number of atoms of that element in the formula) ÷ relative formula mass × 100
True or false? Relative formula mass is measured in grams.
False. Relative formula mass is a comparison of masses, so it has no units.