A chemical engineer is studying the rate of this reaction. 2N,0; (g) 2N204 (g)+02 (8) She fills a reaction vessel with N2O3 and measures its concentration as the reaction proceeds. Here's a graph of her data: 4 0.2- 0.15- [N,05](M) 0.1- 0.05 0 t(s) Use this graph to answer the following questions: What is the half life of the reaction? = X10 11/2 Round your answer to 2 significant digits. Suppose the rate of the reaction is known to be first order in N2O3. Calculate the value of the rate constant k. k = 0 ? Round your answer to 2 significant digits. Also be sure you include the correct unit symbol. Predict the concentration of N2O5 in the engineer's reaction vessel after 12.0 seconds have passed. [N.O] - M Assume no other reaction is important, and continue to assume the rate is first order in N205 Round your answer to 2 significant digits