CameraIcon

SearchIcon

MyQuestionIcon

1

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

Percentage Composition

0.5 g of an o...

Question

$0.5$ g of an organic compound on combustion produced some gaseous products which were passed into caustic potash solution. The increase in weight of potash solution was found to be $1.5$ g. The percentage of carbon in the compound is nearly:

A

82

%

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

B

40

%

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

C

60

%

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

D

75

%

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

Open in App

Solution

The correct option is A $82$ %
Since $K O H$ is a solvent for $C O_{2}$ ,

weight of $C O_{2}$ evolved is $1.5$ g $= \frac{1.5}{44} = 0.034$ mol.

$1$ mole of $C O_{2}$ contains $12$ g of $C$ .

$∴ 0.034$ moles will contain $12 \times 0.034 = 0.408$ g of $C$ .

Percentage of $C$ in the compound is $\frac{0.408}{0.5} \times 100 = 81.6$ %.

Suggest Corrections

thumbs-up

0

Similar questions

0.92

g of an organic compound containing carbon, hydrogen and oxygen was analysed by combustion method. The increase in the mass of the U-tube and the potash bulbs at the end of the operation was found to be

1.08

1.76

g, respectively. Determine the percentage composition of the compound.

Q. 0.46 g of an organic compound was analysed. The increase in mass of

C a C l_{2}

U-Tube was 0.54 g and potash bulb was 0.88 g. The percentage composition of the compound is:

0.92 g m

of an organic compound containing carbon, hydrogen, and oxygen was analysed by combustion method. The increase in the mass of the

U

-tube and the potash bulbs at the end of the operation was found to be

1.08 g m

1.76 g m

, respectively. Determine the percentage composition of the compound.

Q. 0.92 g of an organic compound was analysed by combustion method. The mass of the U- tube increased by 1.08 g. What is the percentage of hydrogen in the compound?

Q. On complete combustion,

0.1

g of an organic compound gave

0.176

g of carbon dioxide and

0.18

g of water. The percentage composition of carbon and hydrogen in the compound respectively is :

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Percentage Composition and Molecular Formula

CHEMISTRY

Watch in App

explore_more_icon

Explore more

Percentage Composition

Standard XII Chemistry

Join BYJU'S Learning Program

CrossIcon