Calculate the mass of nitrogen dissolved at room temperature in an 80.0 -L home aquarium. Assume

step 1 So for this question, we first need to calculate the partial pressure of the nitrogen gas. That

Calculate the mass of nitrogen dissolved at room temperature...

Key Concepts

Henry's Law

Henry's Law establishes that at a constant temperature, the amount of gas dissolved in a liquid is directly proportional to the partial pressure of that gas above the liquid. This principle is fundamental when calculating the concentration of a dissolved gas under different pressure conditions, such as determining how much nitrogen dissolves in water at a given pressure.

Partial Pressure

Partial pressure refers to the pressure exerted by a single component in a mixture of gases. It is calculated by multiplying the total pressure by the mole fraction of the gas. This concept is essential for determining the effective pressure driving the dissolution of a specific gas, like nitrogen in this scenario.

Mole Fraction in Gas Mixtures

The mole fraction represents the ratio of the number of moles of a particular gas to the total number of moles in the gas mixture. In gas solubility problems, it is used to ascertain the contribution of each gas to the total pressure, thereby allowing the calculation of the individual gas's partial pressure.

Unit Conversions

Unit conversions, such as converting between moles and mass using the molar mass, are necessary to express the final result in terms of mass rather than moles. This step is crucial in translating the calculated concentration or number of moles of a dissolved gas into a quantifiable mass, appropriate for practical applications.

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