Assuming 0.75 g of P2O5,
moles of P2O5 = 0.0053 moles
1 molecule of P2O5 has 7 atoms.
so reqd. no. is 2.23 X 1022.
740 grams P2O5 (1 mole P2O5/141.94 grams)(6.022 X 10^23/1 mole P2O5) = 3.14 X 10^24 atoms of P2O5
P2O5 2 atoms of phosphorous 5 atoms of oxygen ------------------------------+ 7 atoms altogether
P is phosphorus, O is oxygen P2O5 molecules have two (di-) P atoms, and five (pent-) O atoms, so the name of the compound is diphosphorus pentoxide.
25x6.022x10^23=1.5x10^25p2o5=7atom7(1.5x10^25)
5, the subscript immediately after the atomic symbol O for oxygen.
740 grams P2O5 (1 mole P2O5/141.94 grams)(6.022 X 10^23/1 mole P2O5) = 3.14 X 10^24 atoms of P2O5
P2O5 2 atoms of phosphorous 5 atoms of oxygen ------------------------------+ 7 atoms altogether
From every two atoms of P, one molecule of P2O5 is formed. The relative formula mass of two atoms of P (phosphorous) is 62, whereas for one molecule of P2O5 it is 142. The mass of P2O5 formed is therefore 142/62 times the mass of P we started with. This comes out to 286.3g (to one decimal place).
There is 25.0 moles Oxygen
This ratio is 2/5.
P is phosphorus, O is oxygen P2O5 molecules have two (di-) P atoms, and five (pent-) O atoms, so the name of the compound is diphosphorus pentoxide.
5, the subscript immediately after the atomic symbol O for oxygen.
25x6.022x10^23=1.5x10^25p2o5=7atom7(1.5x10^25)
P2O5 Reason: di means two. So, diphosphorus means there are two phosphorus atoms. Penta means five. So, pentoxide means there are five oxygen atoms. That's how you get P2O5.
The name of P2O5 is phosphorus pentoxide. It is a white solid that is used as a desiccant and dehydrating agent..
2 to 5 because p is 2 and o is 5
The chemical name for the formula P2O5 is phosphorous pentoxide. It has a relatively complex structure of two rings. Each ring has multiple phosphorus atoms double bonded to oxygens.