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Tse the References to access isportast valnes if needed for this questioa The rearrangement of ammonium cyanate to urea in aqueous solution at 50 C is second order in NH NCO with a rate comstant of L.10-10 M1 min If the initial concentration of NH NCO is 0.695 M, the conceatration of NH NCO will be minutes have passed Mates 413 Retry Entire Group 4 more group atternpts remaining Submit Answer

Use the Refereuces to sccess important valnes if needed far this qnestien The decomposition of hydrogen iodide on a gold surface at 150 C HI(g)--M H2(g) + ½ 12(g) is zero order in HI with a rate constant of 1.20 10 Ms If the initial concentration of HI is 0.529 M, the concentration of HI will be 0.106 M after hare Submit Answer Retry Entire Group 4 more group attempts remairning

Use the References to access important talues if beeded for this question The decomposition of hydrogen iodide on a gold surface at 150 °C as zero order in HI one experiment, when the initial concentration of HI was 0.385 N, the cosecentration of Hi droped to 9 124 M e 245-103 seconds had passed. Based on these data, the rate constant for the reaction is Retry Entire Group 4 more group atherpts remaining Submit Answer

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4、532 5.97 1 0-69s (a-*) 0-167 to-167 413 min 0.529-0.106 = 1.20 ΧΙδ1x t t= o.423 1.20 七=「3525 sec. Cubore 0-4-31 2.4-5 X103

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