Calculate the mass of 0.1 mole of each of the following

(a) CaCO₃

(b) Na₂SO₄.10H₂O

(c) CaCl₂

(d) Mg

(Ca = 40, Na = 23, Mg =24, S = 32, C = 12, Cl = 35.5, O = 16, H = 1)

Calculate the number of oxygen atoms in 0.10 mole of Na₂CO₃.10H₂O.

Calculate the number of moles in 12 g of oxygen gas

What mass of Ca will contain the same number of atoms as are present in 3.2 g of S?