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Grade: 12th pass
        
Mole fraction of I2 in C6H6 is 0.2.Molality of I2 in C6His 
Ans-3.2m(please sir reply soon)
one year ago

Answers : (1)

Khimraj
3008 Points
							

Let us start of with an assumption: we have ten moles of the given solution. Therefore we have 2 moles of iodine dissolved in 8 moles of benzene.

Molecular mass of benzene=78.

Molality=𝑁𝑜.𝑚𝑜𝑙𝑒𝑠𝑜𝑓𝑖𝑜𝑑𝑖𝑛𝑒/𝑀𝑎𝑠𝑠𝑜𝑓𝑠𝑜𝑙𝑣𝑒𝑛𝑡𝑖𝑛𝑘𝑔

Therefore 8 moles of benzene weighs 78∗8=624grams

Molality=(2∗1000)/624 =3.205

That's your answer

one year ago
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