The Second-Order Reaction 2 Mn(CO)₅ → Mn₂(CO)₁₀,has a Rate Constant

question 117

Multiple Choice

The second-order reaction 2 Mn(CO) ₅ → Mn₂(CO) ₁₀,has a rate constant equal to
3) 0 × 10⁹ M^-1 s^-1 at 25°C.If the initial concentration of Mn(CO) ₅ is 2.0 × 10^-5 M,how long will it take for 90.% of the reactant to disappear?

• A)6)7 × 10^{- 16} s
• B)7)4 × 10^{- 15} s
• C)1)5 × 10^{- 4} s
• D)6)0 × 10³ s

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