Chlorine monoxide accumulates in the stratosphere above Antarctica each winter and plays a key role in the formation of the ozone hole above the South Pole each spring. Eventually, ClO decomposes according to the equation:  picture The second-order rate constant for the decomposition of ClO is 6.78×109 M–1s–1 at a particular temperature. Determine the half-life of ClO when its initial concentration is 1.46×10-8 M .

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