Hello
My name is Debolina Sarkar, and I am a Chemical Engineering graduate. I shall be starting graduate school this fall, so have a few months to kill before that (hence Freelancer).
Looking at your problem, I believe the problems shouldn't take much time to solve, being fairly straight-forward. As far as chemistry and chemical kinetics is concerned, a big chunk of my work involves using models rooted in reactor kinetics and mathematics to make models that address biological phenomena, and the knowledge of stoichiometry is essential to that.
Until December last year, I was at MIT working on my undergraduate thesis in computational immunology, so I have also used chemical engineering concepts for solving fairly complex problems.
I assure you that I shall attend to your assignment with the utmost dedication and do a good job.
I shall appreciate it a lot if you decide to allot me your project.