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How many liters of NH₃ can be produced at 5 atm and 24 °C from a 9 g sample of nitrogen gas and an excess of hydrogen gas? (N₂(g) + 3H₂(g) ⟶ 2NH₃(g))

2.3 L
4.5 L
6.8 L
9.2 L

1 Answer

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Final answer:

To determine the volume of NH₃ produced from a given amount of nitrogen gas and an excess of hydrogen gas, we can use stoichiometry and the ideal gas law equation. Approximately 2.4 liters of NH₃ can be produced.

Step-by-step explanation:

To determine the volume of NH₃ produced from a given amount of nitrogen gas and an excess of hydrogen gas, we can use the concept of stoichiometry. According to the balanced chemical equation N₂(g) + 3H₂(g) ⟶ 2NH₃(g), the ratio between nitrogen and ammonia is 1:2.

First, we need to convert the mass of nitrogen gas to moles using its molar mass (28 g/mol). Then, using the mole ratio, we can calculate the moles of ammonia produced. Finally, we can convert the moles of ammonia to liters using the ideal gas law equation V = nRT/P, where V is the volume in liters, n is the number of moles, R is the gas constant, T is the temperature in Kelvin, and P is the pressure in atmospheres.

Plugging in the values and solving for V, we get:

V = (2 mol)(0.0821 L·atm/mol·K)(297 K)/(5 atm) ≈ 2.37 L

Therefore, approximately 2.4 liters of NH₃ can be produced.

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