40 g of Ca = 1 mole
So 808 g of Ca = 20.2 mole
20.2
7,68 grams of calcium nitride is equal to 0,052 moles.
The molecular weight of Calcium Bromide is extremely close to 200. So 1200/200 = 6 moles present.
Calcium Nitrtae is Ca(NO3)2 and so there are two moles of nitrate per mole of calcium nitrate. Thus there are 2 x 2.50 = 5.0 moles of nitrate present.
42,5 grams calcium is equivalent to 1,06 moles.
0,27 moles of calcium contain 10,82 g calcium.
120 grams of calcium contain 2,994 moles.
3 moles of calcium is equivalent to 120,234 g.
29,0 g of calcium is equal to 0,723 moles.
425 g calcium (Ca) is equal to 10,604 moles.
0,06 g calcium is equivalent to 0,0015 moles.
120 g calcium is equal to 3 moles.