Respuesta :

Neetoo

Answer:

Number of moles = 0.125 mol

Explanation:

Given data:

Mass of calcium = 5.00 g

Number of moles = ?

Solution:

Formula:

Number of moles = mass/ molar mass

Molar mass of calcium = 40 g/mol

By putting values,

Number of moles = 5.00 g/ 40 g/mol

Number of moles = 0.125 mol