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.

increased stability in the completion of fluorine's outer shell.