NH4NCO(aq)(NH2)2CO(aq) is second order in NH4NCO. In one experiment, when the initial concentration of NH4NCO was 0.288 M, the concentration of NH4NCO dropped to 3.14×10-2 M after 1.81×103 minutes had passed. Based on these data, the rate constant for the reaction is ______________M-1 min-1.

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