7.7 Rates of ozone decomposition are retarded by carbonate ions, which act as hydroxyl radical scavengers....
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7.7 Rates of ozone decomposition are retarded by carbonate ions, which act as hydroxyl radical scavengers. Three sets of batch data collected at pH 7.0 with the same carbonate concentration (0.01 molar total carbonate species) and three different initial ozone concentrations are given below (Hull et al., 1992). Also shown is one set of data without addition of carbonate. Verify the order of the rate of decomposition determined in Problem 7.5 and determine the effect of the carbonate on the rate coeffi- cient. Time (min) 0 1 3 10 20 40 60 For CO3,7= 0.01 mol/L 0.3 1.0 3.0 0.98 2.71 0.89 2.63 0.80 2.11 0.70 1.98 0.53 1.40 0.36 0.90 0.28 0.27 0.23 0.20 0.16 Co₂, mg/L (Not in Problem 7.5 but 7.6) . For CO3,T=0 3.0 2.24 1.99 1.12 0.46 0.06 7.7 Rates of ozone decomposition are retarded by carbonate ions, which act as hydroxyl radical scavengers. Three sets of batch data collected at pH 7.0 with the same carbonate concentration (0.01 molar total carbonate species) and three different initial ozone concentrations are given below (Hull et al., 1992). Also shown is one set of data without addition of carbonate. Verify the order of the rate of decomposition determined in Problem 7.5 and determine the effect of the carbonate on the rate coeffi- cient. Time (min) 0 1 3 10 20 40 60 For CO3,7= 0.01 mol/L 0.3 1.0 3.0 0.98 2.71 0.89 2.63 0.80 2.11 0.70 1.98 0.53 1.40 0.36 0.90 0.28 0.27 0.23 0.20 0.16 Co₂, mg/L (Not in Problem 7.5 but 7.6) . For CO3,T=0 3.0 2.24 1.99 1.12 0.46 0.06
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