20.2
40 g of Ca = 1 mole So 808 g of Ca = 20.2 mole
42,5 grams calcium is equivalent to 1,06 moles.
0,27 moles of calcium contain 10,82 g calcium.
3 moles of calcium is equivalent to 120,234 g.
29,0 g of calcium is equal to 0,723 moles.
120 grams of calcium contain 2,994 moles.
425 g calcium (Ca) is equal to 10,604 moles.
0,06 g calcium is equivalent to 0,0015 moles.
400 g of calcium cabonate is equal to 3,996 moles.
120 g calcium is equal to 3 moles.
The formula given shows that each formula unit or mole contains one calcium atom; therefore, 2.5 moles of calcium chloride contains 2.5 moles of calcium atoms.
0,4 moles calcium have 2,408 856 342 8.1023 atoms.