It is reacting as a chemical reaction .
Since that is a lengthy one I to have the same problem in chem. I always trust google and ask question but question of the elements of the periodic table and one by one it will give you the answer and will tell you the formula and the cations
Answer:
It has 2 phosphorus atoms in 1 mol
so for 1.75 mol =2×1.75
Explanation:
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