Answer :

【Answer】: 22.4

【Explanation】: At Standard Temperature and Pressure (STP), one mole of any ideal gas occupies a volume of 22.4 liters. Nitrogen gas (N2) has a molar mass of approximately 28 g/mol. Therefore, 100 g of nitrogen gas is equivalent to 100/28 = 3.57 moles. Since one mole of gas occupies 22.4 liters at STP, 3.57 moles of gas would occupy 3.57 * 22.4 = 80 liters. However, the question asks for the volume of 100 g of nitrogen gas, not 3.57 moles. Therefore, the volume of 100 g of nitrogen gas at STP is 22.4 liters.