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

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Reaction Rates Using Moles
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What is a mole used to count in chemistry?

Particles like atoms or molecules

How many particles are in one mole?

6.02×10236.02 \times 10^{23} particles

What is the formula for mean rate using moles of reactant?

Reactant UsedTime\frac{\text{Reactant Used}}{\text{Time}}

What is the formula for mean rate using moles of product?

Product FormedTime\frac{\text{Product Formed}}{\text{Time}}

What is the unit for rate of reaction when using moles?

mol/s

What does mol/s tell us?

Moles of substance used/formed per second

Why is using moles helpful in chemistry?

It helps think about number of particles

Counting particles helps understand reactions at what level?

Molecular level

What counting unit is a mole compared to?

Dozen

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