You Wish to Monitor the Progress of a Reaction Using $\circ$

question 181

Multiple Choice

You wish to monitor the progress of a reaction using pressures.Suppose 17.06 g N₂ (28.02 g/mol) and 1.228 g H₂ (2.016 g/mol) are initially present in a 20.0 L reaction vessel at 127 ^$\circ$ C.Nitrogen and hydrogen can react to form ammonia (17.04 g/mol) according to the reaction shown.At a given point,the total pressure (the sum of the pressures of N₂,H₂,and NH₃ present) is 1.48 atm.What percentage of the initial N₂ has reacted? N₂(g) + 3 H₂(g) $\to$ 2 NH₃(g)

• A)74.0%
• B)26.0%
• C)52.0%
• D)60.9%
• E)15.8%

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