We’re being asked to determine the time required to decrease the initial concentration of the reactant to 0.050 mol/L.
The integrated rate law for a second-order reaction is as follows:
[A]t = concentration at time t
k = rate constant
t = time (unknown)
[A]0 = initial concentration
A second-order reaction starts with an initial concentration of 0.100 mol/L of the reactant. If the rate constant is 3.6 × 10–2 L/(mol • s), what is the time required to decrease the initial concentration to 0.050 mol/L?
A) 280 s
B) 420 s
C) 19.3 s
D) 1.39 s
E) 830 s
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What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Integrated Rate Law concept. You can view video lessons to learn Integrated Rate Law. Or if you need more Integrated Rate Law practice, you can also practice Integrated Rate Law practice problems.
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Based on our data, we think this problem is relevant for Professor Enderle's class at UCD.