MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

The average m...

Question

The average molar mass of a mixture of $O_{2}$ and $S O_{2}$ having these gases in the ratio of 2:1 by moles is

42.67

Open in App

Solution

The correct option is A 42.67
Since the ratio is 2:1 by moles then,
Let’s consider $O_{2}$ = 2/3 mol, and $S O_{2}$ = 1/3 mol

Now,
$M_{a v g}$ = $(M_{1} n_{1} + M_{2} n_{2}) / n_{1} + n_{2}$ where $M_{1} a n d M_{2}$ are molar masses of $O_{2}$ (32 g/mol) and $S O_{2}$ (64 g/mol) respectively

whereas $n_{1}$ and $n_{2}$ are the moles of $O_{2}$ and $S O_{2}$ respectively

$M_{a v g}$ = (32 x 2/3 + 64 x 1/3) / 1
= 128/3
= 42.67 g

Suggest Corrections

thumbs-up

0

Similar questions

Q. A mixture of gases contains

H_{2}

O_{2}

gases in the ratio of 1:4 by weight. What is the molar ratio of the two gases in the mixture?

Q. A gaseous mixture containing He,CH4 and SO2 was allowed to effuse through a fine hole then find what the molar ratio of gases coming out initially?(Given mixture contains He,CH4 and SO2 in 1:2:3 mole ratio).

Q. A mixture of gases contains H2 and O2 in the ratio 1:4{w/w}.what is the molar ratio of the gases in the mixture?

Q. mixture of SO3, SO2 and O2 gases is maintained at equilibrium in 10 litre flask at a temp in which Kc for the reaction 2SO2 + O2 gives 2SO3. Kc= 100 .at equilibrium-
1. if no. of moles of SO3 and SO2 in flask are same then how many moles of O2 are present.
2.no. of moles of SO3 is twice of SO2, then how many moles of O2 are present.

Q. A mixture of gases contains

H_{2}

O_{2}

gases in the ratio of

1 : 4

w / w

). What is the molar ratio of the two gases in the mixture?

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Watch in App

Join BYJU'S Learning Program

CrossIcon