A Sample of N₂ Gas Is Contaminated with a Gas

question 38

Multiple Choice

A sample of N₂ gas is contaminated with a gas (A) of unknown molar mass.The partial pressure of each gas is known to be 200.torr at 25°C.The gases are allowed to effuse through a pinhole,and it is found that gas A escapes at 4 times the rate of N₂.The molar mass of gas A is:

• A)1.75 g/mol
• B)112 g/mol
• C)7.01 g/mol
• D)448 g/mol
• E)none of these

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Definitions:

Desired Profit

The target amount of profit a company aims to achieve in a specific period, often used in pricing and production planning.

Contribution Margin

The amount by which sales revenue exceeds variable costs, indicating how much revenue contributes towards covering fixed costs and generating profit.

Machine Time

The amount of time a machine is in operation, used to calculate manufacturing costs and efficiency in production processes.

Product Demand

The quantity of a product or service that consumers are willing and able to purchase at various prices during a specified time period.