If I want to make 12 g of XeO2 from the elements, how much Xe do...

If I want to make 12 g of XeO2 from the elements, how much Xe do I need, in grams

Expert Solution

The balanced reaction is Xe + O₂ XeO₂

Molar mass of Xe = 131.3 g/mol

Molar mass of XeO₂ = ( At.mass of Xe) + (2xAt.mass of O)

= ( 131.3) + ( 2x16)

= 163.3 g/mol

According to the balanced equation,

1 mole of XeO₂ is formed from 1 mole of Xe

OR

163.3 g of XeO₂ is formed from 131.3 g of Xe

12 g of XeO₂ is formed from M g of Xe

M = ( 12x131.3) / 163.3

= 9.65 g

Therefore the mass of Xe required is 9.65 g

queen_honey_blossom answered 4 months ago

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