Final answer:
The number of moles of 29.4 L liquid ethanol at STP is approximately 1.31 moles.
Step-by-step explanation:
The question is asking how many moles are in 29.4L of liquid ethanol at STP (Standard Temperature and Pressure). To find the number of moles from the volume of a gas at STP, we can use the molar volume of a gas, which is 22.4L per mole at STP.
To determine the number of moles of liquid ethanol at STP, we need to use the molar volume of a gas at STP, which is 22.4 liters per mole. Since ethanol is a liquid at STP, we need to convert the given volume of 29.4 liters to moles:
moles = volume (L) / molar volume (L/mol)
moles = 29.4 L / 22.4 L/mol
moles ≈ 1.31 mol