What is the balanced equation for phosphorous pent oxide + water Phosphoric acid
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Answer:
P4O10 + 6 H2O → 4 H3PO4
Explanation:
To balance this equation, start by multiplying the phosphoric acid by
4
to get equal numbers of atoms of phosphorus on both sides of the equation
P
4
O
10(s]
+
H
2
O
(l]
→
4
H
3
PO
4(aq]
Notice that you have
2
atoms of hydrogen on the reactants' side and
12
on the products' side. Multiply the water molecule by
6
to balance the hydrogen atoms out.
Incidentally, this will also balance out the atoms of oxygen, since you'd now have
16
on the reactants' side and
16
on the products' side.
The balanced chemical equation for this reaction will thus be
P
4
O
10(s]
+
6
H
2
O
(l]
→
4
H
3
PO
4(aq]
It's worth mentioning that diphosphorus pentoxide is a very powerful dehydrating agent
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