✓14 15 16 ✓17 18 19 20 2 Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrog first step, nitrogen and hydrogen react to form ammonia: N₂(g) + 3H₂(g) → 2NH₂(9) AH--92. kJ In the second step, ammonia and oxygen react to form nitric acid and water: NH₂(g) +20,(9)→ HNO₂(g) + H₂O(g) AH--330. kJ Calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hyd Round your answer to the nearest kJ. |បឹង

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.