please solve all parts with steps

2. Calculate the following 1. a grams of gold in 0.105 mols of Au (20.6829) b. molecules of Mgo in 2.95 murs of MgO (1.176x1024) c. grams of Ag in 1.35 x 1024 atoms of Ag (241.82g Ag) 11. Calculate the number of atoms, ions, or molecules for the following (d, e, f) d. 2.00 mol Na atom (1.204 x 104 atoms) e. 3.00 mol K+ K+ (1.81 x 1024 ions) F. 68.0 g HS (1.202 x 1024 molecules) II. g. Calculate the mass in grams Of 120 x 1024 molecules con (81.696 CO2)