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1. A 1.2 molar solution A has a rate constant of 3.4 L/ mol*s. Determine its half-life if its rate law is second-order.
.24 .245 4.08 4.1 1.0

2. For a first-order reaction, reaction rate and concentration are
directly proportional inversely proportional independent cannot be determined none of the above

3. Which statement regarding the rate determining step is TRUE:
All reactions have a rate determining step Rate determining steps can only be unimolecular The step is usually slow The step is usually fast Overall reaction has to be faster than the rate determining step

4. For a zero-order reaction, the rate is ___ of concentration.
independent dependent that inversely none of the above

5. After 5.0 minutes a .50 molar solution is left. Find the reaction rate if the initial amount of the solution was 1.0 molar.
0.10 mol/L*s 0.10 mol/L*min. 5.0 mol/L*s 5.0 mol/mL*min 2.0 mol/L*min

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