Which is the molar mass of BF3?
10.81 g/mol
29.81 g/mol
48.81 g/mol
67.81 g/mol

The molar mass of is 67.81 g/mol

Explanation:

Molar mass is defined as the mass in grams of 1 mole of a substance.

S.I Unit of Molar mass is gram per mole and it is represented as g/mol.

Atomic Mass of Boron (B) = 10.81 g

Atomic Mass of Flourine (F) = 18.99  g

Molecular mass of   = 1 (10.81)+3(18.99) g = 67.81 g

Thus molar mass of is 67.81 g/mol

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