Question

Mole fraction of i2 in benzene is 0.2 if density of solution is 1.2 gram per and then calculate molarity, percentage weight by weight and percentage weight by volume

Answer 1

Answer:

Mole fraction of I is 0.2 , so , Benzene has 0.8. In 100 moles , 20 moles of I

2

& 80 moles of benzene so in 1000g of solvent, we have

6240

20×1000

which is 3.2 molal (Mass of benzene =80×78=6240g)

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