Integrated Rate laws
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10 Terms
What kind of rate laws are half life formulas?
Half lives are always integrated formulas
What do integrated rate laws calculate/connect?
They calculate concentration changes over time
Is this integrated or differential? “How much is left after X seconds?”
Use integrated rate law
Is this integrated or differential? How long will it take to drop to Y concentration?
Use integrated rate law
Is this integrated or differential? “How much reactant is left after 20 minutes?”
Integrated
“A certain substance decomposes via second-order kinetics with a rate constant k = 0.050 M-1 s-1. If the initial concentration of the reactant is 1.0M, what will the concentration be after exactly 20 seconds have passed?”
Is this an integrated or differential question?
Integrated rate law because it connects concentration and time
What do Differential Rate Laws connect?
Differential Rate Laws connect Concentration and Speed/Reaction Rate [A] vs. Rate
“A proposed mechanism for a reaction is shown below:
Which of the following is the correct rate law for the overall reaction?”
Does this question use integrated or differential rate law?
differential rate law
Are reaction mechanisms question directly linked to differential or integrated rate laws?
differential rate laws
Differential rate law questions will not often use seconds, minutes, or hours. What units will they often give you?
They only care about molarity (M) and speed (M/s).