Question

Mass percentage of calcium (Ca) in
CaCO3(Mw=100 g/mol) is :

Answer 1

Explanation:

The mass of calcium in this compound is equal to 40.1 grams because there's one atom of calcium present and calcium has an atomic mass of 40.1 amu. The molar mass of the compound is 100.1 grams. Using the handy equation above, we get:

Mass percent = 40.1 g Ca?100.1 g CaCO3 100% = 40.1% Ca

Answer 2

Answer:

The moral mass of the compound is 100.1 grams. using the handy equation

above , we get mass percent=40.1g ca ? 100%=40.1%ca.