Answer:
[tex]5.18\text{ moles}[/tex]Explanation:
Here, we want to get the number of moles in the given mass
Mathematically:
[tex]Number\text{ of moles = }\frac{mass}{molar\text{ mass}}[/tex]The molar mass of CaCO3 is 100 g/mol
The number of moles is thus:
[tex]Number\text{ of moles = }\frac{518}{100}\text{ = 5.18 moles}[/tex]