Question

Q.6 a) Define poly atomoc ion with example.
b) Calculate number of moles in 112 g. of iron. atomic mass of iron =56g

[Atomic mass of iron = 56 g.]​

Answer 1

Answer:

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Explanation:

1)Polyatomic Ions. The term poly means many, so a polyatomic ion is an ion that contains more than one atom. Thus it is different from monatomic ions, which contain only one atom. Examples of monatomic ions include Na+ and Cl- etc.

2)Since 56 g of iron = 1 mol. Therefore, 112 g of iron= 1/ 56 ×112 mol = 2 mol.