Reaction Rates Using Moles (OCR GCSE Chemistry A, Combined (Gateway Science Suite)): Flashcards

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Reaction Rates Using Moles
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Definition of a mole

Unit to count particles (atoms/molecules) in a substance

Number of particles in one mole

6.02×10236.02 \times 10^{23} particles

Mean rate formula using reactant (moles)

Reactant used (mol)Time\frac{\text{Reactant used (mol)}}{\text{Time}}

Mean rate formula using product (moles)

Product formed (mol)Time\frac{\text{Product formed (mol)}}{\text{Time}}

Unit for rate of reaction (moles)

mol/s

What mol/s represents

Moles of reactant/product per second

Why use moles in reactions?

To think about number of particles involved

At what level do moles help understand reactions?

Molecular level

Alternatives to moles for measuring reactions

Grams or cubic centimetres

Counting unit similar to mole

Dozen (counts 12)

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