Question

What is the molar mass of becl₂?
1 4 2
2 4 3
3 4 4

Answer 1

The molar mass of BeCl₂ is 79.9186 grams per mole, calculated by summing the molar masses of beryllium and two chlorine atoms.

Step-by-step explanation:

The molar mass of BeCl₂ (beryllium chloride) can be calculated by adding the molar masses of one beryllium atom (Be) and two chlorine (Cl) atoms. The molar mass of beryllium is approximately 9.0122 grams per mole, and the molar mass of chlorine is approximately 35.453 grams per mole. Therefore, the calculation for the molar mass of BeCl₂ is as follows:

Molar mass of BeCl₂ = (1 × 9.0122 g/mol) + (2 × 35.453 g/mol) = 79.9186 g/mol.

Answer 2

The molar mass of BeCl₂ is 80.91 g/mol.

Step-by-step explanation:

The molar mass of BeCl₂ can be calculated by finding the sum of the atomic masses of its constituent elements.

The atomic mass of Be is 9.012 g/mol and the atomic mass of Cl is 35.453 g/mol. Since there are two Cl atoms in BeCl₂, we multiply the atomic mass of Cl by 2.

The molar mass of BeCl₂ is therefore 9.012 g/mol + 2(35.453 g/mol) = 80.91 g/mol.