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United StatesChemistryQuick questions

Unit 5: Kinetics

Quick questions on Reaction rates - AP Chemistry Unit 5

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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For 2HI(g)→H2(g)+I2(g)2\text{HI}(g) \rightarrow \text{H}_2(g) + \text{I}_2(g), HI disappears at 0.040 M s−10.040\ \text{M s}^{-1}. Calculate the rate of appearance of H2\text{H}_2. [2 points]
What is q2?
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Explain why the instantaneous rate of a reaction is largest at the start. [2 points]
What is not dividing by the coefficient?
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The single reaction rate requires dividing each species rate by its stoichiometric coefficient; species rates alone differ.

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