How many so32- ions are contained in 99.6 mg of na2so3? the molar mass of na2so3 is 126.05 g/mol.

Answer : The number of ions are,

Explanation : Given,

Mass of = 99.6 mg = 0.0996 g

Conversion used : (1 mg = 0.001 g)

Molar mass of = 126.05 g/mole

First we have to calculate the moles of .

Now we have to calculate the number of .

As we know that, dissociate to give 2 moles of and 1 mole of .

From this we conclude that,

As, 1 mole contains number of ions

So,  mole contains number of ions

Therefore, the number of ions are,

the atomic mass is the bottom number on the element.

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