In the reaction 4NH₃ + 5O₂ -> 4NO + 6H₂O, how many grams of O₂ are required to react with 17 g of NH₃? (Atomic
Given: In the reaction 4NH₃ + 5Oâ‚‚ -> 4NO + 6Hâ‚‚O, how many grams of Oâ‚‚ are required to react with 17 g of NH₃? (Atomic masses: N = 14, H = 1, O = 16) These values define the system as per NCERT data. Formula: Molar mass of NH₃ = 17 g/mol. This is the standard NCERT relation for this phenomenon. Substitution & Calculation: Moles of NH₃ = 17 / 17 = 1 mol. 4 mol NH₃ require 5 mol Oâ‚‚. Moles of Oâ‚‚ = (5 / 4) × 1 = 1.25 mol. Mass = 1.25 × 32 = 40 g. Result: The computed value matches the expected outcome and confirms the correct choice. Units and powers like J kgâ
Ref: NCERT Chemistry Textbook for Class XI and XII, Chapter: Some Basic Concepts, Structure of Atom and Periodicity, Topic: Mole concept, atomic models and periodic trends.