Final answer:
The volume of a 13.4 mL sample of CO2 gas is 0.0134 L.
Step-by-step explanation:
To convert milliliters (mL) to liters (L), you divide the volume in mL by 1000. In this case, the given volume is 13.4 mL, so the volume in liters is 13.4 mL / 1000 = 0.0134 L.