J.R. S. answered 01/14/22
Ph.D. University Professor with 10+ years Tutoring Experience
Look up Ca in the periodic table. It is atomic number 20. It has an atomic mass of 40.1 g/mol.
This means it takes 40.1 g of Ca to make 1 mole. Using this information, you should be able to find out how many moles is equivalent to 180.0 g.
180 g x 1 mole / 40.1 g = moles
Emma P.
Alright thank u01/14/22