Final answer:
Without additional context, a complete answer to the question regarding the final volume in milliliters cannot be provided. Typically, such problems require the conversion of units and use of laws like Boyle's law or the solution dilution equation, but here, crucial information to employ these is missing.
Step-by-step explanation:
The question what is the final volume v2 in milliliters when 0.765 l of a 30.1 seems to be missing some information, making it hard to determine the exact context of the problem. However, based on related chemistry problems, I suspect this question might relate to Boyle's law or solution dilution, which are typical topics covered in chemistry curricula. However, without additional information such as pressure changes, initial conditions, or concentration changes, I cannot provide an accurate solution.
For similar types of problems involving volume, you'd generally convert all units to match and then perform the required calculations. If you're working with Boyle's law (P1V1 = P2V2), you need both the initial and final pressures or volumes to solve for the unknown variable. For solution dilution (C1V1 = C2V2), you need the initial and final concentrations and one volume to find the other.
In the case of volume calculations, you would convert liters to milliliters by multiplying by 1000 (e.g., 0.765 L to 765 mL). Without clearer instructions, however, I cannot provide a final answer to the question as it is presented.