Stoichiometry of Product Formation
A sample of 0.350 mol of NO(g) is allowed to react with excess O₂(g) according to the equation below.
2NO(g) + O₂(g) → 2NO₂(g) ΔH° = -114.1 kJ
After the reaction has gone to completion, the system absorbs 42.5 kJ of heat from its surroundings. What mass of NO₂(g) was produced?
A
32.2 g
B
8.05 g
C
16.1 g
D
12.1 g
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