Calculate the number of mol in 555g of CaCO3
To calculate the number of moles in 555g of CaCO3, we need to first determine the molar mass of CaCO3.
The molar mass of CaCO3 can be obtained by adding up the atomic masses of its constituent elements:
Atomic mass of Ca = 40.08 g/mol
Atomic mass of C = 12.01 g/mol
Atomic mass of O = 16.00 g/mol (there are 3 O atoms in CaCO3)
Molar mass of CaCO3 = (1 calcium atom x 40.08 g/mol) + (1 carbon atom x 12.01 g/mol) + (3 oxygen atoms x 16.00 g/mol) = 40.08 g/mol + 12.01 g/mol + 48.00 g/mol = 100.09 g/mol
Now, we can use the molar mass to calculate the number of moles:
Number of moles = mass / molar mass
Number of moles = 555g / 100.09 g/mol ≈ 5.55 mol
Therefore, there are approximately 5.55 moles of CaCO3 in 555g.