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Asked by lovemaan5500 | 30 Jan, 2019, 12:01: PM
Expert Answer
Given:
Mole fraction of benzene = 0.4
Total number of moles in a solution = 1
No. of moles of benzene = 0.4 mol
Weight of benzene = no. of moles × molecular mass
= 0.4 × 78
= 31.2 g
Mole fraction of toluene = 0.6
Moles of toluene = 0.6 mol
Weight of toluene = 0.6 × 92.14
= 55.28 g
Total weight = 31.2 + 55.28
=86.48
Weight percent of benzene is 35.84%
Answered by Varsha | 30 Jan, 2019, 05:22: PM
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