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1) A first-order reaction has a half-life of 15.5 s . How long does it take...

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Chemistry

1) A first-order reaction has a half-life of 15.5 s . How longdoes it take for the concentration of the reactant in the reactionto fall to one-eighth of its initial value?

2) The rate constant for a certain reaction is k = 4.30×10−3 s−1. If the initial reactant concentration was 0.350 M, what will theconcentration be after 8.00 minutes?

Answer & Explanation Solved by verified expert
4.4 Ratings (952 Votes)
1 For first order recation half life t12 0693 k where k is rate constant k 0693 t12 Eq 1 k 1t ln AoAt Eq 2 From Eqs 1 and 2 0693 t12 1t ln Ao At Eq 3 Given that half life t12    See Answer
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