At what temperature will a molecule of UF6 have the same average speed as a molecule of hydrogen gas at 37 degrees C?

I was planning on using this set up:
((3RT)/MM UF6)^1/2 = ((3RT)/MM H)^1/2
filling in the known information so you will solve for T of UF6. Will this work, or will the units mess up my answer?

I believe you are ok. Remember that the entire 3RT/M is under the square root sign. Also remember R must be used as 8.134 J/mol*K. The answer is in units of m/s.