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12 Cards in this Set
- Front
- Back
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Equation for 1st Order Reactions |
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Time in Order of Reaction Problems |
Make sure that the "t" value is converted to seconds to match the s^-1 unit within the k (reaction constant). |
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For 1st Order Reactions: solving for concentration [A]^0 or [A]^t.... |
I will have to use the inverse natural long function (e^K*t) on the right side of the equation to eliminate the "ln" (natural log) present on the left side of the equation. |
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Equation for 2nd Order Reaction |
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2nd Order: If solving for [A]^t... |
... I must divide 1 by the sum of the right side of the equation. |
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Equation for Half-Life |
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Half-Life questions: if the ? Asks "how long until 6.25% (or some other percentage) of reactant is left.." .... |
... determine the fraction equivalent of the percentage (i.e. 6.25% = 1/16), then determine how many 1/2's that fraction is (i.e. 1/16 = 1/2^4). Take that exponent and multiply the original half-life by it to determine how long it will take. |
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Slopes (k) of 2nd Order Reactions |
+k |
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Slopes of 1st and 0th Order |
-k |
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Equation for Half-Life calc. when initial concentration ([A]^0) is changed |
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Rate Law of Rxn. |
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Equation for 0th Order |
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