Which of the following is true regarding gases at STP? Molar volume can be used at any temperature. The mol or volume of a gas can only be found using PV = nRT. 22.4 mol of gas occupies 1 L . 1 mol of gas occupies 22.4 L .
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At standard temperature and pressure (STP), which is defined as 0 degrees Celsius and 1 atmosphere of pressure, one mole of an ideal gas occupies approximately 22.4 liters. This is a handy rule of thumb that allows you to quickly gauge how much space a gas will take up under those specific conditions! It's important to remember that the ideal gas law \(PV = nRT\) is a fantastic tool for calculating various properties of gases, but it doesn't mean it’s the only way to understand gas behavior. Many real-world situations can be approximated through various empirical methods and simplified calculations that yield reliable results without wielding the gas law every time!