For a Reaction a A → Products, [A]₀ = 4

question 67

Multiple Choice

For a reaction a A → products, [A]₀ = 4.0 M, and the first three successive half-lives are 48, 96, and 192 min.
-Calculate [A] at t = 81 min.

• A) 2.6 M
• B) 3.0 M
• C) 1.3 M
• D) 1.5 M
• E) none of these

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