8) In water, ammonium cyanate, NH4CNO, reacts to form urea, NH₂CONH₂. 22.9 g of

ammonium cyanate was dissolved in water and diluted to a total volume of 1 L. From the

data below, determine the order of reaction, the rate constant, and the mass of ammonium

cyanate left after 300 min.

t (min) 0 20 50 65 150

m urea (g) 0 7.0 12.1 13.8 17.7