An unknown compound contains only carbon, hydrogen, and oxygen (CxHyOz). Combustion of 4.00 g of this compound produced 5.87 g of carbon dioxide and 2.40 g of water.

How many moles of carbon, C, were in the original sample?
How many moles of hydrogen, H, were in the original sample?

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.