A solution contains one mole of alcohol and four moles of water. What are the mole fractions of water and alcohol?

1/4, 4/1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

4/1, 1/4

No worries! We‘ve got your back. Try BYJU‘S free classes today!

4/5, 1/5

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1/5, 4/5

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

Step 1:
Given that,
Moles of alcohol = 1 mole
Mole of water = 4 mole
Mole fraction of a substance is given by
$X_{A} = \frac{n_{A}}{n_{A} + n_{B}}$
Step 2:
Mole fraction of alcohol, $x_{a l c o h o l} = \frac{1}{1 + 4} = \frac{1}{5}$
Mole fraction of water, $x_{w a t e r} = \frac{4}{1 + 4} = \frac{4}{5}$
Hence, option (C) is correct.

Suggest Corrections

Similar questions

Q. Which of the following statements are correct?

(i) Mole fraction of a solute + mole fraction of solvent

=

1

(ii) If equal weights of helium and methane are present in a gaseous mixture, then the mole fraction of He is

\frac{4}{5}

(iii) The mole fraction of water in the aqueous solution of NaOH is

0.8

. The molality of the solution is nearly 14 moles kg

^{- 1}

Q. The ratio of the volume of three buckets is 3:4:5. buckets contains the mixture of water and alcohol. if the mixture contains water and alcohol in the ratio 1:4,1:3 and 2:5 respectively then find the ratio of water and alcohol when the mixture in all containers are poured in fourth container.

Q. 5 moles of

N H_{4} O H

and 1 mole of HCl are mixed and diluted to 1 litre.

p K b

N H_{4} O H

is 4.8. The

p H

of the solution is:

Three containers have their volumes in ratio 3:4:5. They are full of mixtures of milk and water in the ratio of (4:1),(3:1) and (5:2) respectively . The ratio of milk and water in the fourth container contains all the above three mixtures is=

Options....

(1.)4:1. (2.)151:48

(3.)157:53. (4.)5:2

1 mole of methyl alcohol is mixed with 4 moles of ethyl alcohol. The mole fraction of ethyl alcohol is:

Join BYJU'S Learning Program

A solution contains one mole of alcohol and four moles of water. What are the mole fractions of water and alcohol?

Step 1: Given that, Moles of alcohol = 1 mole Mole of water = 4 moleMole fraction of a substance is given by XA=nAnA+nB Step 2: Mole fraction of alcohol, xalcohol=11+4=15 Mole fraction of water, xwater=41+4=45 Hence, option (C) is correct.