<u>Answer:</u> The number of moles of disulfur decafluoride is 
<u>Explanation:</u>
We are given:
Number of disulfur decafluoride molecules = 
According to mole concept:
number of molecules are contained in 1 mole of a compound.
So,
number of molecules will be contained in =
of disulfur decafluoride.
Hence, the number of moles of disulfur decafluoride is 