A solution was made by mixing benzene () and carbon tetrachloride (). Given that the mole fraction of carbon tetrachloride is 0.824 in the solution obtained from 60.5 g , calculate the mass of benzene used. Mass

Explanation:

Hello,

In this case, considering the mole fraction of carbon tetrachloride, we can write:

Whereas the moles of carbon tetrachloride are computed from the given 60.5 g (molar mass 153.82 g/mol):

So we can compute the moles of benzene from the definition of molar fraction:

Now, with the molar mass of benzene (78.11 g/mol) we compute the mass of benzene:

Regards.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be