1. Why did the student's measurement turn out to be so costly? 2. What should he have done differently ?

Maybe you should get some from your teacher and learn more so you can get your grades up and maybe study a bit more

Is there a picture or answer choices?

Answerit curves up and levels out.explanationwe assume that the container contains absolutely no ammonia to begin with as it states that "nitrogen gas and hydrogen gas" react to "produce ammonia."at dynamic equilibrium, the product and reactant concentrations are equal.this means that, starting from a concentration of zero, [nh₃] must curve "up" from zero and then level out to a constant concentration.