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Common Equations Used in Chemistry
Rate law expression. The sum (x+ y) gives the overall order of the reaction: rate = k[A]x[B]y Relationship between concentration and time for a first-order reaction: ln [A]o [A] = kt Equation for the graphical determination of k for a first-order reaction: ln [A] = -kt + ln [A]o Half-life for a first-order reaction: t1/2 = ln 2 k = 0.693 k
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