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United StatesChemistryQuick questions

Unit 7: Equilibrium

Quick questions on Calculating the equilibrium constant - AP Chemistry Unit 7

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 A⇌B\text{A} \rightleftharpoons \text{B}, a flask starts with [A]=0.50[\text{A}] = 0.50 M; at equilibrium [B]=0.20[\text{B}] = 0.20 M. Calculate KcK_c. [3 points]
What is q2?
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In an ICE table for 2A⇌B2\text{A} \rightleftharpoons \text{B}, write the change in [A][\text{A}] if [B][\text{B}] changes by +x+x. [1 point]
What is wrong multiples in the change row?
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Scale each change by the species' coefficient; a coefficient of 2 means a change of 2x2x.

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