The sulfur hexafluoride molecule consists of one sulfur atom and six fluorine atoms.The atomic masses of sulfur and fluorine are 32.0 u and 19.0 u respectively.What mass does one mole of this gas have?

Question

Quizplus · Accepted Answer

To find the mass of one mole of sulfur hexafluoride, we need to add up the atomic masses of one sulfur atom and six fluorine atoms. 
1 sulfur atom x 32.0 u/atom = 32.0 u 
6 fluorine atoms x 19.0 u/atom = 114.0 u 
Total mass = 32.0 u + 114.0 u = 146.0 u or 146 g/mol (since 1 mole of any gas contains Avogadro's number of particles, which is 6.02 x 10^23. The unit "u" stands for atomic mass unit).

The Sulfur Hexafluoride Molecule Consists of One Sulfur Atom and Six