What is the temperature of 0.750 mol of a gas stored in a 6,850 mL cylinder at 2.21 atm? Use P V equals n R T. and R equals 0.0821 StartFraction L times atmospheres over moles time K EndFraction.. 2.95 K 5.24 K 138 K 246 K

Which statement describes evidence of a chemical reaction? a) ice melting eliminate b) water boiling c) lighting a match d) grape juice freezing

What term is missing from the central region that describes hypotheses, theories, and laws? popular predictable mathematical falsifiable

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 .