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Consider the following equation for the formation of ammonia from nitrogen and hydrogen: ; N2 + 3H2 = 2NH3, How many hydrogen molecules are required to react with 100 molecules of nitrogen?
Explanation
The formation of ammonia (NH3) from nitrogen (N2) and hydrogen (H2) is governed by the balanced chemical equation: N2 + 3H2 → 2NH3 [t1, t3]. According to the principles of stoichiometry, the coefficients in a balanced equation represent the molar or molecular ratio of the reactants and products [t4, t5]. In this specific reaction, one molecule of nitrogen reacts with exactly three molecules of hydrogen to produce two molecules of ammonia [t1]. Therefore, the stoichiometric ratio of N2 to H2 is 1:3. To find the amount of hydrogen required for 100 molecules of nitrogen, we multiply the number of nitrogen molecules by the ratio (100 × 3). This calculation results in 300 molecules of hydrogen being necessary for a complete reaction with 100 molecules of nitrogen [t1].