Respuesta :
Answer: Option (B) is the correct answer.
Explanation:
Molar mass is defined as the sum of masses of all the atoms present in a compound.
For example, atomic mass of barium is 137.32 g/mol and atomic mass of bromine is 79.90 g/mol.
Therefore, molar mass of [tex]BaBr_{2}[/tex] will be as follows.
Molar mass = atomic mass of Ba + [tex]2 \times atomic mass of Br[/tex]
= 137.32 g/mol + [tex]2 \times 79.90 g/mol[/tex]
= 297.12 g/mol
Hence, we can conclude that molar mass of [tex]BaBr_{2}[tex] is 297.12 g/mol.
Answer : The molar mass of [tex]BaBr_2[/tex] is 297.1 g/mol
Explanation :
Molar mass : It is defined as the sum of the mass of all the atoms each multiplied its atomic masses that are present in the molecular formula of a compound. It is expressed in g/mol.
As we know that,
Molar mass of Ba = 137.3 g/mole
Molar mass of Br = 79.9 g/mole
Now we have to calculate the molar mass of [tex]BaBr_2[/tex]
Molar mass of [tex]BaBr_2[/tex] = [tex]1(137.3)+2(79.9)=297.1g/mole[/tex]
Therefore, the molar mass of [tex]BaBr_2[/tex] is 297.1 g/mol
