Question

What is the formula mass of magnesium chloride?

-59.76
-95.21
-130.66
-125.84
-none of the above

Answer 1

The formula of magnesium chloride is MgCl2.

You can find the numbers with fractions on the periodic table but I will calculate it with integer numbers.

Magnesium’s mass is 24.3.
Chlorine’s mass is 35.5.


24.3+(35.5).2=95.21

Answer 2

The formula mass of magnesium chloride (MgCl₂) is 95.21 g/mol.

Step-by-step explanation:

The formula mass of magnesium chloride (MgCl₂) can be calculated by adding up the atomic masses of each element present in the compound. The molar mass of MgCl₂ is 95.21 g/mol, so the formula mass of magnesium chloride is also 95.21 g/mol.