CameraIcon

SearchIcon

MyQuestionIcon

1

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

Stoichiometric Calculations

When burnt in...

Question

When burnt in air, $14.0$ g mixture of carbon and sulphur gives a mixture of $C O_{2}$ and $S O_{2}$ in the volume ratio of $2 : 1$ by volume. Being measured at the same conditions of temperature and pressure, number of moles of carbon is:

A

0.75

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

B

0.5

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

C

0.40

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

D

0.25

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

Open in App

Solution

The correct option is A $0.5$
The volume ratio produced = 2:1
That means double the moles of carbon dioxide is produced
Let, mass of carbon = x g
Mass of S = $(14 - x)$ g

Moles of carbon= $\frac{x}{12}$

Moles of S = $\frac{14 - 4}{32}$

and we have

$2 \times m o l e s o f c a r b o n = m o l e s o f S$

$2 \times \frac{x}{12} = \frac{14 - x}{32}$

On soving, we get x = 6 g

$∴$ Moles of carbon = $\frac{6}{12} = 0.5$

Suggest Corrections

thumbs-up

1

Similar questions

Q. When burnt in air, a

12.0

g mixture of carbon and sulphur yields a mixture of

C O_{2}

S O_{2}

is produced, in which the number of moles of

S O_{2}

is half that of

C O_{2}

. The mass of the carbon the mixture contains is: (At. wt.

S = 32

)

Q. A mixture of methane and carbon monoxide requires 1.7 times its volume of oxygen for complete combustion. What is the ratio of

C H_{4} : C O

by volume in the mixture? [All volume are measured at the same temperature and pressure]

Q. A mixture of

C_{2} H_{2}

C_{3} H_{8}

occupied a certain volume at a pressure of 80 mm Hg. The mixture was completely burnt to form

C O_{2}

H_{2} O (l)

. If the pressure of

C O_{2}

was found to be 230 mm Hg at the same temperature and volume, then the mole fraction of

C_{3} H_{8}

in the mixture is:

Q. A mixture of

C_{2} H_{2}

C_{3} H_{8}

occupied a certain volume at 80

m m

H g

. The mixture was completely burnt to

C O_{2}

H_{2} O

. When the pressure of

C O_{2}

was found to be 230

m m

H g

at the same temperature and volume, the fraction of

C_{2} H_{2}

Q. A mixture of

C_{2} H_{2}

C_{3} H_{8}

occupied a certain volume at a pressure of 80 mm Hg. The mixture was completely burnt to form

C O_{2}

H_{2} O (l)

. If the pressure of

C O_{2}

was found to be 230 mm Hg at the same temperature and volume, then the mole fraction of

C_{3} H_{8}

in the mixture is:

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Stoichiometric Calculations

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Stoichiometric Calculations

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon