for the reaction of ammonia ion with nitrous acis, the net reaction is NH4+ +HNO2 = N2 + 2H2O + H+. if the initial concentration of nitrous is 1.00 M and after 28.8 s has elapsed, the concentration of nitrogenous acid has fallen to 0.82 M, what is the average rate of the reaction over this time interval

Cyclobutane, C4H8, consisting of molecules in which four carbon atoms for a ring, decomposes when heated to give ethylene. C4H8(g)  →  2C2H4(g) The reaction is first order. In an experiment, the initial concentration of cyclobutane was (3.500x10^-3) M. After heating at 450 °C, for (5.55x10^2) s, this was reduced to (2.6090x10^-3) M. What was the concentration of cyclobutane after a total of (1.008x10^3) s? Express your answer to three significant figures. Just enter the number  (e.g. 2.48x10^-4) and the unit.

The first order reaction SO,CI, (g) --> SO2 (g) + Cl2 (g) has a rate constant of 2.90 X 10 s at a given temperature. Determine that concentration of SO,Cl, at 1,621 s if the initial concentration of SO,Cl, is 0.101 M.

The following initial rate data are for the reaction for the formation of phosgene from carbon monoxide and chlorine: со + Clz → COCI2 Initial Rate, Ms-1 Experiment [CO]o, M [CIz]o, M 2.45 0.399 1.43x10-28 2 2.45 0.798 |2.85х10-28 3 4.90 0.399 2.85x10-28 4 4.90 0.798 5.71x10-28 Complete the rate law for this reaction in the box below. Use the form k[A]m[B]^ , where '1' is understood for m or n and concentrations taken to the zero power do not appear. Don't enter 1 for m or n Rate = From these data, the rate constant is M-1s-1.