One mole of anhydrous Cu(NO3)2 has 187,5558 g.
187
319g Cl2 are needed.
201
326g
The needed mass of sodium is 91,659 g (for 2 moles H2).
molar mass and Avogadro's number
0.125 mole
10.1 grams
16,45 g nitrogen are needed.
319g Cl2 are needed.
A lot
28 grams of Nitrogen is necessary to produce 34 grams of ammonia.
mass of CaCO3 = 246 grams
201
800 g oxygen are needed.
530,3 g potassium iodide are needed.
326g
The needed mass of sodium is 91,659 g (for 2 moles H2).