What Is the Molar Mass of an Unknown Gas If

question 21

Multiple Choice

What is the molar mass of an unknown gas if 3.7 g of the gas occupies 450 mL at 20.0°C and 2.0 atm? The value of R = 0.0821 L atm mol^-1 K^-1.

• A) 3.7 × 10^-2 g/mol
• B) 9.9 × 10^-3 g/mol
• C) 6.8 g/mol
• D) 98.9 g/mol
• E) 5.5 × 10³ g/mol

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Definitions:

Relative Prices

The price of one good or service compared to another, often indicating their opportunity cost or trade-off.

Utility Function

An economic concept that quantifies an individual's satisfaction or happiness, derived from consuming goods and services, represented through a formula.

Indifference Curves

A graph representing different bundles of goods between which a consumer is indifferent, showing the combinations that yield the same level of utility to the consumer.

Engel Curve

Represents the relationship between a consumer's income and the consumption of a particular good, illustrating how purchasing habits change with varying income levels.