(B) The mass ratio of $C : H : N$ is $9 : 1 : 3.5$.To find the molar ratio,divide the mass of each element by its atomic mass $(C = 12, H = 1, N = 14)

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(B) The mass ratio of $C : H : N$ is $9 : 1 : 3.5$.To find the molar ratio,divide the mass of each element by its atomic mass $(C = 12, H = 1, N = 14)$:Molar ratio of $C : H : N = \frac{9}{12} : \frac{1}{1} : \frac{3.5}{14} = 0.75 : 1 : 0.25$.To simplify the ratio,divide each value by the smallest value $(0.25)$:$\frac{0.75}{0.25} : \frac{1}{0.25} : \frac{0.25}{0.25} = 3 : 4 : 1$.Therefore,the empirical formula is $C_3H_4N$.

Class 11 Chemistry Some Basic Concepts of Chemistry Percentage composition and Molecular formula

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$A$ compound of carbon,hydrogen,and nitrogen contains three elements in the respective ratio of $9 : 1 : 3.5$ grams. The empirical formula for the compound is

A
$C_2H_4N$
B
$C_3H_4N$
C
$C_3H_6N$
D
$C_2H_6N$

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Some Basic Concepts of Chemistry

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Percentage composition and Molecular formula

Determine the molecular formula of an oxide of iron in which the mass per cent of iron and oxygen are $69.9$ and $30.1$ respectively. Given that the molar mass of the oxide is $159.69 \, g \, mol^{-1}$.

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$0.01 \ mol$ of an organic compound $(X)$ containing $10\%$ hydrogen,on complete combustion produced $0.9 \ g \ H_2O$. Molar mass of $(X)$ is $.......... \ g \ mol^{-1}$.

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If the fertilizers listed below are priced according to their nitrogen content,which will be the least expensive per $50 \ kg$ bag?

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Insulin contains $3.4\%$ sulphur. The minimum molecular weight of insulin is

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In $CH_3CH_2Br$,the percentage of $Br$ is:

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$A$ compound of carbon,hydrogen,and nitrogen contains three elements in the respective ratio of $9 : 1 : 3.5$ grams. The empirical formula for the compound is

Similar Questions

Determine the molecular formula of an oxide of iron in which the mass per cent of iron and oxygen are $69.9$ and $30.1$ respectively. Given that the molar mass of the oxide is $159.69 \, g \, mol^{-1}$.

$0.01 \ mol$ of an organic compound $(X)$ containing $10\%$ hydrogen,on complete combustion produced $0.9 \ g \ H_2O$. Molar mass of $(X)$ is $.......... \ g \ mol^{-1}$.

If the fertilizers listed below are priced according to their nitrogen content,which will be the least expensive per $50 \ kg$ bag?

Insulin contains $3.4\%$ sulphur. The minimum molecular weight of insulin is

In $CH_3CH_2Br$,the percentage of $Br$ is:

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