Question

determine the molar mass of mg(oh)₃. provide an answer to two decimal places.

Explanation:

Step1: Identify atomic masses

Atomic mass of Mg: $24.31\ \text{g/mol}$, O: $16.00\ \text{g/mol}$, H: $1.01\ \text{g/mol}$.

Step2: Calculate mass of each element

For Mg: $1\times24.31 = 24.31\ \text{g/mol}$.
For O: $2\times16.00 = 32.00\ \text{g/mol}$ (2 O atoms).
For H: $2\times1.01 = 2.02\ \text{g/mol}$ (2 H atoms).

Step3: Sum the masses

Molar mass = $24.31 + 32.00 + 2.02 = 58.33\ \text{g/mol}$.

Answer:

$58.33\ \text{g/mol}$