Question

Formula unit mass of mg (oh)2

Answer 1

Explanation:

The molar mass of Mg(OH)2 is 58.33 g/mol. The molar mass of magnesium is 24.31 g/mol.

Answer 2

Given: The given compound is magnesium hydroxide.

To find: We have to find the formula unit mass.

Solution:

The chemical formula of magnesium hydroxide is $Mg(OH)_2$.

The atomic mass of Mg is 24unit and the atomic mass of oxygen is 16u.

The atomic mass of H is 1u.

This compound has one Mg, two oxygens and two hydrogen atoms.

The formula unit mass is as follows-

$24 + 16 \times 2 + 2 \times 1 \\ = 24 + 32 + 2 \\ = 58$

The formula unit mass of magnesium hydroxide is 58u.