Final answer:
The volume of 3.50 moles of gas at STP is calculated by multiplying the number of moles by the molar volume, which is 22.4 liters/mole, resulting in 78.4 liters. So the correct answer is d) 78.4 liters.
Step-by-step explanation:
To calculate the volume in liters of 3.50 moles of gas at STP (Standard Temperature and Pressure), we can use the fact that one mole of gas at STP occupies 22.4 liters. Therefore, we multiply the number of moles by the molar volume to find the total volume.
The calculation is as follows:
3.50 moles × 22.4 liters/mole = 78.4 liters
Thus, the volume of 3.50 moles of gas at STP is 78.4 liters.
To calculate the volume in liters of 3.50 moles of gas at STP, we use the molar volume concept, which states that 1 mole of gas at STP occupies 22.4 liters. Therefore, for 3.50 moles of gas, the volume would be:
3.50 moles x 22.4 liters/mole = 78.4 liters
So the correct answer is d) 78.4 liters.