Home
Class 11
CHEMISTRY
Two different formulas are used in order...

Two different formulas are used in order to represent composition of any miolecule, empirical formula and molecular formula . While the fomer gives an idea of relative ratio of number of atoms, latter gives the exact number of atoms in the molecule.
A 62 gm sample of a substance consist of 2 gm hydrogen , 28 gm nitrogen and remaining oxygen . What will b its empirical formula?

A

`NHO_(2)`

B

`NHO_(4)`

C

`NHO_(3)`

D

`NHO_(4)`

Text Solution

Verified by Experts

The correct Answer is:
B
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MOLE CONCEPT, STOICHIOMETRY & CONCENTRATION TERMS

    GRB PUBLICATION|Exercise Comprehension#37|1 Videos

  • MOLE CONCEPT, STOICHIOMETRY & CONCENTRATION TERMS

    GRB PUBLICATION|Exercise Comprehension#38|1 Videos

  • MOLE CONCEPT, STOICHIOMETRY & CONCENTRATION TERMS

    GRB PUBLICATION|Exercise Comprehension#35|1 Videos

  • ISOMERISM

    GRB PUBLICATION|Exercise SUBJECTIVE TYPE|67 Videos

  • NOMENCLATURE AND CLASSIFICATION

    GRB PUBLICATION|Exercise Subjective Type|24 Videos

Similar Questions

Explore conceptually related problems

Calculate the number of formula units, number of oxygen atom and total charge in 3 gm of CO_(3)^(2-) .

The chemical compounds are represented by both Empirical and Molecular formulae. Whereas the former is only theoritical, the latter is the actual formula of a compound. In some cases, the two may be even same. A very popular organic compound is a major constituent of alcoholic drinks. (i) What is the empirical of the compound ? (ii) What is its molecular formula ? (iii) Give the chemical name of the compound (iv) Find the percentage composition of the compound ?

Knowledge Check

  • Two different formulas are used in order to represent composition of any miolecule, empirical formula and molecular formula . While the fomer gives an idea of relative ratio of number of atoms, latter gives the exact number of atoms in the molecule. An organic compound contains C N and O . The number of oxygen atom is same as that of nitogen atom which is one third of number of carbon atoms and number of hydrogen atoms is approximately 2.33 times of carbon atoms. If vapour density of the compound is 73 then molecular formula of the compound will be :

    A
    `C_(3)H_(7)NO`
    B
    `C_(2)H_(5)NO`
    C
    `C_(6)H_(14)N_(2)O_(2)`
    D
    `C_(5)H_(12)N_(3)O_(2)`

  • Two different formulas are used in order to represent composition of any miolecule, empirical formula and molecular formula . While the fomer gives an idea of relative ratio of number of atoms, latter gives the exact number of atoms in the molecule. 4.6 gm of an organic compound on complete combustion gave 8.8 gm of CO_(2)(g) and 5.4 gm of H_(2)O(g) only and no other products . what will be the empirical formula of the hydrocarbon?

    A
    `CH_(3)`
    B
    `C_(2)H_(6)O`
    C
    `CH_(2)O`
    D
    `CH_(2)`

  • Reduce acid contains 52.63% carbon, 5.30% hydrogen and 42.07% oxygen. Its empirical formula is the same as its molecualr formula. What is the number of carbon atoms in a molecule of this acid?

    A
    4
    B
    5
    C
    6
    D
    8

    • Similar Questions

    Explore conceptually related problems

    Assertion: Molecular formula shows the exact number of different types of atoms present in a molecule of a compound. Reason : Molecular formula can be obtained directly from empirical formula which represents the simplest whole number ratio of various atoms present in a compound.

    PASSAGE-II : Empirical formula is the simplest formula of the compound which gives the atomic ratio of various elements present in one molecule of the compound. However, the molecular formula of the compound gives the number of atoms of various elements present in one molecule of the compound. Molacular formula = (Empirical formula) xxn implies n=("Molecular mass")/("Empirical formula mass") A compound may have same empirical and molecular formula. Both these formulae are calculated using percentage composition of constituent elements. An oxide of iodine (Atomic mass of I = 127 u) contains 25.4 g of iodine and 8 g of oxygen. Its formula could be :

    PASSAGE-II : Empirical formula is the simplest formula of the compound which gives the atomic ratio of various elements present in one molecule of the compound. However, the molecular formula of the compound gives the number of atoms of various elements present in one molecule of the compound. Molacular formula = (Empirical formula) xxn implies n=("Molecular mass")/("Empirical formula mass") A compound may have same empirical and molecular formula. Both these formulae are calculated using percentage composition of constituent elements. 10 g of hydrofluoric acid gas occupies 5.6 litre of volume at STP. If the empirical formula of the gas is HF, then its molecular formula in the gaseous state will be

    PASSAGE-II : Empirical formula is the simplest formula of the compound which gives the atomic ratio of various elements present in one molecule of the compound. However, the molecular formula of the compound gives the number of atoms of various elements present in one molecule of the compound. Molacular formula = (Empirical formula) xxn implies n=("Molecular mass")/("Empirical formula mass") A compound may have same empirical and molecular formula. Both these formulae are calculated using percentage composition of constituent elements. Which of the following compounds have the same empirical formula as that of formaldehyde?

    Assertion : The empirical mass of ethene is half of its molecular mass. Reason : The empirical formula represents the simplest whole number ratio of various atoms present in a compound.

    Home
    Profile