Question

How many molecules of SF6
are in 25.0 g SF6?

[ ? ]×10⁰²] molecules SF6

Answer 1

SF₆

Molar mass: 146.06 g/mol

mole = 25 : 146.06 = 0.171

molecules:

=0.171 x 6.02 x 10²³

=1.03 x 10²³