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If 28 grams of N2 and 10 grams of H2 are reacted, how much NH3 will produce?(a) 17 grams(b) 34 grams(c) 51 grams(d) 54 gramsThis question was posed to me during an online interview.The origin of the question is Stoichiometry Applications Terminology in section The Chemical Reaction Equation & Stoichometry, Material Balances for Processes Involving Reaction and Multiple Units of Basic Chemical Engineering

Answer»

Correct choice is (b) 34 grams

Explanation: MOLES of N2 = 28/28 = 1, moles of H2 = 10/2 = 5, Reaction is N2 + 3H2 -> 2NH3, => N2 is limiting REAGENT, => moles of NH3 = 2*1 = 2, => weight of NH3 = 2*17 = 34 grams.



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