Home
Class 12
CHEMISTRY
Estimation of halogens: Carisu Method...

Estimation of halogens:
Carisu Method: A known mass of compound is heated with conc. `HNO_(3)` in the presence of `AgNO_(3)` contained in a hard glass tube known as carius tube in a furnce. C and H are oxidised to `CO_(2)` and `H_(2)O` . The halogen forms the corresponding AgX. It is filtered , dried , and weighed.
Estimation of sulphur: A known mass of compound is heated with fuming `HNO_(3)` or sodium peroxide `(Na_(2)O_(2))` in the presence of `BaCl_(2)` solution in Carius tube. Sulphur is oxidised to `H_(2)SO_(4)` and precipitated as `BaSO_(4)` . It is filerted, dried and weighed.
0.32 gm of an organic substance when treated by Carius method gave 0.466 gm of `BaSO_(4)` . Calculate the percentage of sulphur in the compound (Ba=137)

A

`34.0`

B

`46.0`

C

`80.0`

D

`50.0`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MOLE CONCEPT

    ALLEN|Exercise O-II (Assertion Reason:)|2 Videos

  • MOLE CONCEPT

    ALLEN|Exercise O-II (Multiple concept|6 Videos

  • MOLE CONCEPT

    ALLEN|Exercise O-I|45 Videos

  • METALLURGY

    ALLEN|Exercise EXERCISE-05 [B]|26 Videos

  • p-Block Element

    ALLEN|Exercise All Questions|20 Videos

Similar Questions

Explore conceptually related problems

0.395 g of an organic compound by carius method for the estimation of sulphur gave 0.582 g of BaSO_(4) . Calculate the percentage of sulphur in the compound.

In the estimation of sulphur organic compound on treating with conc. HNO_(3) is converted to

which element is estimated by carius method?

In an estimation of Sulphur by carius method, 0.2175 g of a compound gave 0.5825 g of barium sulphate. Calculate the percentage of Sulphur in the compound.

Which metal does not form nitrate when heated with conc HNO_(3) :

Heating rubber with sulphur is known as

In the estimation of sulphur by carius method, 0.468 gm of an organic sulphur compound afforded 0.668 gm of barium sulphate. Find out the percentage of sulphur in the given compound.

When a nitrogen containing organic compound is strongly heated with conc. H_(2)SO_(4) , the product is -

0.1170 gm of an organic compound on heating with conc. HNO_3 and silver nitrate in Carius furnace gave 0.42 gm of AgCl . Find the percentage of chlorine in the compound.