Rate of Reaction (OCR GCSE Chemistry A (Gateway Science Suite)): Flashcards

A unit for counting large numbers of particles (atoms, molecules) in chemistry

$6.02 \times 10^{23}$ particles

Like dozen (12), but counts $6.02 \times 10^{23}$

Mean rate of reaction = $\frac{\text{Amount of reactant used (mol)}}{\text{Time}}$

Mean rate of reaction = $\frac{\text{Amount of product formed (mol)}}{\text{Time}}$

mol/s

Moles of substance reacted/formed per second

To understand reactions at the particle/molecular level

Number of particles involved

Grams (g) or cubic centimetres (cm³)