dutchm4n dutchm4n

21-04-2018
Chemistry

contestada

What is the oxidation state of phosphorus in the following compounds?
a. Phosphoric acid
b. Phosphorus pentoxide
c. phosphine

Respuesta :

mkryukova19 mkryukova19

21-04-2018

a) H3PO4
H(+1),
P(X)
O(-2)
3*(+1)+x+4*(-2)=0, 3+x-8=0, x=+5
b)P2O5
P(x)
O(-2)
2x-2*5=0, 2x=10, x=+5
c) PH3
P(x)
H(+1)
x+3*(+1)=0, x+3=0, x=-3

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