Four u tubes each have distilled water in the right arm, a solution in the left arm, and a semipermeable membrane between arms. a. if the solute is kcl, which solution is most concentrated? b. if each solute is different but all the solutions have the same molarity, which contains the smallest number of dissolved ions?

Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .