5.3 - Isolation (Pseudo–First-Order) Method
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Practice Questions
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Define the Isolation Method in your own words.
💡 Hint: Think about simplifying complex expressions or equations in mathematics.
What do we assume about the concentration of the excess reactant while using the Isolation Method?
💡 Hint: Consider how holding a value constant affects equations.
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Interactive Quizzes
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What does the Isolation Method assume about one of the reactants?
💡 Hint: Consider the definition of 'constant' in scientific terms.
True or False: The Isolation Method is only applicable to reactions in gas phase.
💡 Hint: Think about different types of reactions including in liquids or solids.
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Challenge Problems
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A reaction A + 2B → Products is monitored. If B initially is 5M and we observe k′ = 0.1 min^-1, find the rate constant k assuming A's concentration diminishes during the reaction. How would you validate that B's concentration remains effectively constant throughout?
💡 Hint: Solve with consideration to how different orders affect k and validate through concentration checks.
If the concentration of A doubled in a reaction where B was in excess, discuss how the overall reaction rate changes in terms of the reaction order with respect to A. Provide a detailed explanation for your answer.
💡 Hint: Think about how reaction orders significantly change calculations in kinetics.
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