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3 years ago

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

Chemistry

2 answers:

kondor19780726 [428]3 years ago

5 0

The molar mass of BF3 is 67.81 g/mol

Explanation

Molar mass is the mass of all atoms in a molecule in gram per mole.
molar mass of a molecule is calculated by adding atomic mass of constituent atom

use the periodic table to determine the atomic mass of each element in the molecule.

that is;

atomic mass of B = 10.81 g/mol

atomic mass of F = 19 g/mol

since there 3 atoms of F in BF3 the atomic massof F in BF3= 3 x19 = 57 g/mol

total molar mass of BF3 = 10.81 g/mol + 57 g/mol = 67.81 g/mol

LUCKY_DIMON [66]3 years ago

3 0

Answer:

The molar mass of BF3 is 67.81 g/mol

Explanation:

Molar mass is the mass of all atoms in a molecule in gram per mole. Use the periodic table to determine the atomic mass of each element in the molecule.

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