Question

What volume at stp does 3.5 moles of methane, ch4, occupy?

Answer 1

What volume at stp does 3.5 moles of methane, ch4, occupy?

Answer:

According to the Avogadro's law:

At STP the molar volume (volume of one mole) of an ideal gas is $V_m = 22.4 \, \text{dm}^3 \, \text{ml}^{-1}$.

$$V = N_m * V_m$$ $$V = 3.5 * 22.4 = 78.4 \, \text{dm}^3 \, (\text{L})$$

Answer: 78.4 L