Question

What is the molar mass of BaBr2?multiple choice on the picture

Answer 1

B. 297.1 g/mol

Is your answer! ;)

Answer 2

Answer: Option (B) is the correct answer.

Explanation:

Molar mass is defined as the sum of atomic mass of all the atoms present in a compound.

For example, atomic mass of barium (Ba) is 137.32 g/mol and atomic mass of a bromine atom is 79.90 g/mol.

Therefore, calculate molar mass of $BaBr_{2}$ as follows.

                   Molar mass = atomic mass of Ba + 2 $\times atomic mass of Br$

                                       = $137.32 g/mol + 2 \times 79.90 g/mol$

                                       =  297.12 g/mol

Therefore, we can conclude that molar mass of $BaBr_{2}$ is 297.1 g/mol.