Calculate the number of moles of CaCO3 in 3.20g of Calcium Carbonate.

moles = grams/molar mass

3.20/100=0.032

To calculate the number of moles of CaCO3 in 3.20g, we first need to know the molar mass of CaCO3.

The molar mass of an element or compound is the mass of one mole of that substance, usually expressed in grams per mole (g/mol). To find the molar mass of CaCO3, we add up the atomic masses of each individual element present in the compound.

The atomic masses are as follows:
- Calcium (Ca): 40.08 g/mol
- Carbon (C): 12.01 g/mol
- Oxygen (O): 16.00 g/mol (there are three oxygen atoms in CaCO3)

The molar mass of CaCO3 can be calculated as:
(1 * 40.08 g/mol) + (1 * 12.01 g/mol) + (3 * 16.00 g/mol) = 100.09 g/mol

Now that we know the molar mass of CaCO3, we can use the formula:
moles = mass / molar mass

Plugging in the values:
moles = 3.20 g / 100.09 g/mol

Calculating this, we find:
moles = 0.03198 mol (rounded to five decimal places)

Therefore, there are approximately 0.032 moles of CaCO3 in 3.20g of Calcium Carbonate.