Answer:
Number of moles = 0.125 mol
Step-by-step 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