Question

Question 1

What is the molar mass of CaBr₂?
A. 200 g/mol
B. 103 g/mol
C. 100 g/mol
D. 80 g/mol

Answer 1

200 g/mol

Step-by-step explanation:

To calculate the molar mass of CaBr₂ (calcium bromide), we need to determine the atomic masses of calcium (Ca) and bromine (Br), and then sum them up considering the subscripts.

The atomic mass of calcium (Ca) is approximately 40.08 g/mol.

The atomic mass of bromine (Br) is approximately 79.90 g/mol.

Since there are two bromine atoms in CaBr₂, we multiply the atomic mass of bromine by 2.

Now, we can calculate the molar mass of CaBr₂:

Molar mass of CaBr₂ = (atomic mass of calcium) + (2 * atomic mass of bromine)

= 40.08 g/mol + (2 * 79.90 g/mol)

= 40.08 g/mol + 159.80 g/mol

= 199.88 g/mol

Therefore, the molar mass of CaBr₂ (calcium bromide) is approximately 200 g/mol.