A reaction vessel contains 50.0 grams of sodium metal and chlorine gas. How many grams of chlorine gas are needed to produce 75.0 grams of sodium chloride? If this amount of chlorine gas is added to the vessel, how much sodium metal would remain after the reaction goes to completion?

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.