(D) $1$. Calculate the total millimoles of $HCl$ taken: $20 \, mL \times 0.1 \, M = 2.0 \, mmol$.$2$. Calculate the millimoles of $NaOH$ used for neut

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(D) $1$. Calculate the total millimoles of $HCl$ taken: $20 \, mL \times 0.1 \, M = 2.0 \, mmol$.$2$. Calculate the millimoles of $NaOH$ used for neutralization of excess $HCl$: $15 \, mL \times 0.1 \, M = 1.5 \, mmol$.$3$. Millimoles of $HCl$ reacted with $NH_3 = 2.0 - 1.5 = 0.5 \, mmol$.$4$. Since $1 \, mol$ of $NH_3$ reacts with $1 \, mol$ of $HCl$,millimoles of $N = 0.5 \, mmol$.$5$. Mass of nitrogen $= 0.5 \times 10^{-3} \, mol \times 14 \, g/mol = 7 \times 10^{-3} \, g = 7 \, mg$.$6$. Percentage of nitrogen $= (\text{Mass of } N / \text{Mass of compound}) \times 100 = (7 \, mg / 29.5 \, mg) \times 100 \approx 23.7\%$.

Class 11 Chemistry 8-3.Organic Chemistry : Purification and characterization Quantitative Analysis

Medium

$29.5 \, mg$ of an organic compound containing nitrogen was digested according to Kjeldahl's method and the evolved ammonia was absorbed in $20 \, mL$ of $0.1 \, M \, HCl$ solution. The excess acid required $15 \, mL$ of $0.1 \, M \, NaOH$ solution for complete neutralization. What is the percentage of nitrogen in the compound?

A
$29.5$
B
$59$
C
$47.4$
D
$23.7$

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8-3.Organic Chemistry : Purification and characterization

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Quantitative Analysis

Match Column-$I$ and Column-$II$ with the correct relation:

Column-$I$ Column-$II$

$(i).$ Magnesium pyrophosphate $(a).$ $I_2O_5$

$(ii).$ Barium sulphate $(b).$ $AgX$

$(iii).$ Iodide pentoxide $(c).$ $Mg_2P_2O_7$

$(iv).$ Silver halide $(d).$ $BaSO_4$

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$1.4 \ g$ of an organic compound was digested according to Kjeldahl's method and the ammonia evolved was absorbed in $60 \ mL$ of $M/10 \ H_2SO_4$ solution. The excess sulphuric acid required $20 \ mL$ of $M/10 \ NaOH$ solution for neutralization. The percentage of nitrogen in the compound is

DifficultJEE MAIN 2015

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In sulphur estimation,$0.471 \ g$ of an organic compound gave $1.4439 \ g$ of barium sulphate. The percentage of sulphur in the compound is $.............$ (Nearest Integer) (Given: Atomic mass $Ba: 137 \ u, S: 32 \ u, O: 16 \ u$)

DifficultJEE MAIN 2023

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$x \ mg$ of an organic compound was analysed by the Kjeldahl method. The ammonia evolved was absorbed in $50 \ mL$ of $0.5 \ M \ H_2SO_4$. The unused acid required $60 \ mL$ of $0.5 \ M \ NaOH$ solution for complete neutralization. If the percentage of nitrogen in the compound is $56$,the value of $x$ is:

MediumAP EAMCET 2025

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$2.18 \ g$ of an organic compound containing sulphur produces $0.12 \ g$ of $BaSO_4$. The percentage of sulphur in the compound is?

Medium

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Column-$I$	Column-$II$
$(i).$ Magnesium pyrophosphate	$(a).$ $I_2O_5$
$(ii).$ Barium sulphate	$(b).$ $AgX$
$(iii).$ Iodide pentoxide	$(c).$ $Mg_2P_2O_7$
$(iv).$ Silver halide	$(d).$ $BaSO_4$

Similar Questions

Match Column-$I$ and Column-$II$ with the correct relation: Column-$I$ Column-$II$ $(i).$ Magnesium pyrophosphate $(a).$ $I_2O_5$ $(ii).$ Barium sulphate $(b).$ $AgX$ $(iii).$ Iodide pentoxide $(c).$ $Mg_2P_2O_7$ $(iv).$ Silver halide $(d).$ $BaSO_4$

$1.4 \ g$ of an organic compound was digested according to Kjeldahl's method and the ammonia evolved was absorbed in $60 \ mL$ of $M/10 \ H_2SO_4$ solution. The excess sulphuric acid required $20 \ mL$ of $M/10 \ NaOH$ solution for neutralization. The percentage of nitrogen in the compound is

In sulphur estimation,$0.471 \ g$ of an organic compound gave $1.4439 \ g$ of barium sulphate. The percentage of sulphur in the compound is $.............$ (Nearest Integer) (Given: Atomic mass $Ba: 137 \ u, S: 32 \ u, O: 16 \ u$)

$2.18 \ g$ of an organic compound containing sulphur produces $0.12 \ g$ of $BaSO_4$. The percentage of sulphur in the compound is?

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Match Column-$I$ and Column-$II$ with the correct relation:

Column-$I$ Column-$II$

$(i).$ Magnesium pyrophosphate $(a).$ $I_2O_5$

$(ii).$ Barium sulphate $(b).$ $AgX$

$(iii).$ Iodide pentoxide $(c).$ $Mg_2P_2O_7$

$(iv).$ Silver halide $(d).$ $BaSO_4$