Answer:
Molar mass of [tex]BF_{3}[/tex] is 67.805 g.
Explanation:
Molar mass of a molecule is the sum of atomic masses of all constituting atoms.
In [tex]BF_{3}[/tex], there are one boron atom and three fluorine atoms.
Atomic masses of boron and fluorine are 10.811 g and 18.998 g respectively.
So molar mass of [tex]BF_{3}[/tex] = (10.811 g)+([tex]3\times[/tex]18.998 g) = 67.805 g
