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7. Ammonium cyanate (NH,NCO) rearranges in water to form urea (NH2)CO) according to the equation: NHiNCO(aq)-…-> (NHJ2CO(a).
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iven a O initial Concettin C o-458 37 0 At a time t= 45 min Ca*)-O . 니5 O -458 -l 107 O-22 O-458 m e Omi O- 212 「-456Ordex int he nte Constant vaue is ooll HalfIite t8H minute « Conc t 12.haws = 12 x60=.720min

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