How much volume does one mole of any gas occupy at room temperature and pressure?

One mole of any gas occupies approximately 24 dm³ at room temperature and pressure (often defined as 20-25°C and 1 atmosphere of pressure). This value is derived from the ideal gas law and is applicable under standard laboratory conditions, which facilitates comparisons across different gases. The concept is vital for calculations involving gas reactions, as it allows for the determination of how many moles of gas will be produced or consumed in a chemical reaction based on their volumes. Understanding this standard volume is essential for further studies in chemistry, particularly in stoichiometry and gas law applications.