In a study of the rearrangement of ammonium cyanate to urea in aqueous solution at 50 °C NH4NCO(aq)(NH2)½CO(aq) the following data were obtained: NH,NCO], M 0.715 8.95x10-2 1.05x103 0.358 0.179 minutes 150 449 Hint: It is not necessary to graph these data. (1) The observed half life for this reaction when the starting concentration is 0.715 M is | min and when the starting concentration is 0.358 M is min. (2) The average A(1/[NH,NCO]) / At from t = 0 min to t = 150 min i [ The average A(1/[NH4NCO]) / At from t= 150 min to t = 449 min is | M' min. м' min'. (3) Based on these data, the rate constant for this | order reaction is м' min'.

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In a study of the rearrangement of ammonium cyanate to urea in aqueous solution at 50 °C
NH,NCO(aq)→(NH2)½CO(aq)
the following data were obtained:
[NH,NCO], M |0.715
8.95x10-2
1.05x103
0.358
0.179
minutes
150
449
Hint: It is not necessary to graph these data.
(1)
The observed half life for this reaction when the starting concentration is 0.715 M is
min and when the starting concentration is 0.358 M
is
min.
(2)
The average A(1/[NHẠNCO]) / At from t= 0 min to t= 150 min i |
The average A(1/[NH,NCO]) / At from t= 150 min to t= 449 min is
M min.
M' min!.
(3)
Based on these data, the rate constant for this
| order reaction is
M' min!.
Transcribed Image Text:In a study of the rearrangement of ammonium cyanate to urea in aqueous solution at 50 °C NH,NCO(aq)→(NH2)½CO(aq) the following data were obtained: [NH,NCO], M |0.715 8.95x10-2 1.05x103 0.358 0.179 minutes 150 449 Hint: It is not necessary to graph these data. (1) The observed half life for this reaction when the starting concentration is 0.715 M is min and when the starting concentration is 0.358 M is min. (2) The average A(1/[NHẠNCO]) / At from t= 0 min to t= 150 min i | The average A(1/[NH,NCO]) / At from t= 150 min to t= 449 min is M min. M' min!. (3) Based on these data, the rate constant for this | order reaction is M' min!.
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The reaction given is,

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And the kinetics data given is,

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