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A solution contains 0.35 mol of isopropanol (C₃H₇OH) dissolvedin 0.85 mol of water. (a) What is the mole fraction of isopropanol?

Respuesta :

The  mole fraction of isopropanol is 0.30.

What do you meant by mole fraction ?

The ratio of the number of moles of one component of a solution or other mixture to the total number of moles representing all of the components.

It is unit less quantity.

Xa= na / na+nb

 Xb = 1-Xa

No of moles of isopropanol is 0.35 and number of moles of water is  0.85.

So we have to find the mole fraction of isopropanol ,

X(isopropanol) =mole of A / Moles

                                      Of A + B

Sum of moles of A+B is 1.20

X →0.35/1.20

X  →0.30

Here X  represents the mole fraction .

Mole fraction of isopropanol is 0.30.

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