Calculating Rates of Reactions (OCR GCSE Chemistry A (Gateway Science Suite)): Quizzes

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Calculating Rates of Reactions
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What does the rate of a chemical reaction measure?

How quickly reactants are used up

Why are rates of reaction particularly useful?

For understanding efficiency in industry

Which formula calculates mean rate using reactants?

AmountofReactantUsedTimeTaken\frac{Amount of Reactant Used}{Time Taken}

Which formula calculates mean rate using products?

AmountofProductFormedTimeTaken\frac{Amount of Product Formed}{Time Taken}

What does a higher rate of reaction indicate?

A faster reaction

Which units are used to measure amount of reactant or product?

Grams (g) or cubic centimetres (cm³)

Which unit is used to measure time in rate calculations?

Seconds (s)

Which units express the rate of reaction?

g/s or cm³/s

If 0.120.12 g of Mg is used in 4545 s, what is the mean rate?

0.002670.00267 g/s

If 100100 cm³ of gas forms in 4545 s, what is the mean rate?

2.222.22 cm³/s

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Rate of Reaction

Reversibility & Equilibrium

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Rate of Reaction

Reversibility & Equilibrium

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Rate of Reaction

Reversibility & Equilibrium

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Rate of Reaction

Reversibility & Equilibrium

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