Home
Class 12
CHEMISTRY
A compound on analysis gave the follwing...

A compound on analysis gave the follwing result C=54.54%, H=9.09% and vapour density of compound = 88.Determine the molecular formula of the compound.

A

`C_(8)H_(16)O_(0)`

B

`C_(4)H_(16)O_(8)`

C

`C_(2)H_(4)O`

D

`CH_(4)O_(2)`

Text Solution

Verified by Experts

The correct Answer is:
A

`{:("Atom", "atomic mass", %wt, %//"Atomic wt.", "simple ratio"),(C,12,54.54,4.54,2),(H,1,9.09,9.09,4),(O,16,36.37,2.27,1):}`
Empirical formula `= C_(2)H_(4)O`
Empirical formula weight = 44
Molecular formula weight `= 88xx2=176`
`n = (176)/(44)=4`
Hence molecular formula = `C_(8)H_(16)O_(4)`
Promotional Banner

Topper's Solved these Questions

  • CHEMISTRY AT A GLANCE

    ALLEN|Exercise INORGANIC CHEMISTRY|300 Videos
  • CHEMISTRY AT A GLANCE

    ALLEN|Exercise ORGANIC CHEMISTRY|472 Videos
  • Chemical Equilibrium

    ALLEN|Exercise All Questions|30 Videos
  • ELECTROCHEMISTRY

    ALLEN|Exercise EXERCISE -05 [B]|38 Videos

Similar Questions

Explore conceptually related problems

An organic compound on analysis gave C=42.8% , H=7.2%, and N=50% volume of 1 gm of the compoun was found to be 200 ml at STP. Molecular formula of the compound is:

In a compound Carbond =52.2% , Hydrogen =13% , Oxygen =34.8% are present vapour density of the compound is 46. Calculate molecular formula of the compound ?

A hydrocarbon contain 80% C . The vapour density of compound in 30 . Molecular formula of compound is :-

A compound on analysis gave the following percentage composition : Na= 14.31%, S = 9.97%, H = 6.22%, O = 69.50%. Calculate the molecular formula of the compound on the assumption that all the hydrogen in the compound is present in combination with oxygen as water of crystallisation. Molecular mass of the compound is 322. (At. wt. of Na = 23, S = 32, H = 1, O = 16)

It has been found that 0.290 g of an organic compound containing C, H and O on complete combustion yielded 0.66 g of CO_2 and 0.27 g of H_2O . The vapour density of the compound is found to be 29.0. Determine the molecular formula of the compound.

A compound X consists of 4.8% carbon and 95.2% bromine by mass. If the vapour density of the compound is 252, what is the molecular formula of the compound?

A compound on analysis was found to contain the following composition : Na=14.31%,S=9.97%,O=69.50 %and H=6.22 % Calculate the molecular formula of the compound assuming that the whole of hydrogen in the compound is present as water of crystallisation. Molecular mass of the compound is 322.

If the empirical formula of a compound is CH and its vapour density is 13, find the molecular formula of the compound.

A compound has the following percentage composition by mass : Carbon = 54.55%, Hydrogen = 9.09% and Oxygen = 36.26%. Its vapour density is 44. Find the Empirical and molecular formula of the compound. (H = 1, C = 12,0 = 16)

A compound with empirical formula C_2H_5O has a vapour density of 45. The molecular formula of the compound will be