calculate the no of electrons present in 9.5 grams of PO4^-3
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Answer:
The answer goes like this
Explanation:
I hope you mean (PO4)3-
Molar Mass of (PO4)3- is 95g
Given mass is 9.5g
Number of moles = 9.5/95 = 0.1
1 mole contains 6 * 10^23 components
(In this case, ions)
0.1 moles contain 6 * 10^22 ions
But each ion has 50 electrons (15+32+3)
Thus total electrons in 9.5 g of (PO4)3- is (6*10^22)*50
= 3*10^24 electrons.
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