Hydrazine can be used as a rocket fuel. A 6.4 g sample of hydrazine is found to contain 5.6 g of nitrogen and 0.80 g of hydrogen. The molar mass of hydrazine is
the same as that of oxygen gas. Determine the empirical formula and the
molecular formula of this compound. (show work; use labels)

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.

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.