Respuesta :

Answer:

0.0072mole

Explanation:

Given parameters:

Mass of the compound given  = 0.532g

Unknown:

Number of moles  = ?

Solution:

To solve this problem, we need to use the expression below:

       Number of moles  = [tex]\frac{mass}{molar mass}[/tex]

Molar mass of Ca(OH)₂   = 40 + 2(16 + 1)  = 74g/mol

   Number of moles  = [tex]\frac{0.532}{74}[/tex]   = 0.0072mole