A 2.50 L solution contains 5.00 g of NaOH, which has a molecular weight of 40.00
mol
What is the molar concentration of sodium hydroxide in the solution?

You form water vapor by mixing oxygen and hydrogen at 730°c in a 5.4-liter container. this is the equation for the reaction: o2(g) + 2h2(g) → 2h2o(g). the partial pressure of oxygen before the reaction is 122.3 kilopascals, and there is excess hydrogen. how many moles of water are formed?