Molar mass NO2 = 46.0 g/mole
1.18 g NO2 x 1 mol NO2/46.0 g = 0.0257 moles NO2 (to 3 significant figures)
There's 4 moles.
The number of moles is 4.
Since 14 (4+10) moles of P4O10 contains 4 moles of Phosphorus, 8 moles of P4O10 will contain :: (8 x 4)/14 = 2.286 moles of Phosphorus
4 moles
44 moles of atoms
4.50 moles NO2 X (46 grams NO2) / (1 mole NO2) x (4 moles NO2) / (7 moles O2) x (1 mole O2) / (32 gm O2) = 3.70 grams O2
4
2 moles of Ca and 4 moles of OH
There's 4 moles.
Roughly 4 moles.
4 moles also 2 moles of oxygen will be consumed
8
The number of moles is 4.
Since 14 (4+10) moles of P4O10 contains 4 moles of Phosphorus, 8 moles of P4O10 will contain :: (8 x 4)/14 = 2.286 moles of Phosphorus
4 moles
4 moles
44 moles of atoms