What is the molar mass of nitrogen trifluoride (NF3)? Round your answer to 2 decimal places

it's filtration, but this is an assumption so my apologies if i got this

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.