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Some Basic Concepts of Chemistry question

2023 · 30 Jan · Shift 1 · Q14

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JEE Main
Chemistry
Some Basic Concepts of Chemistry
2023 · 30 Jan · Shift 1 · Q14

Some Basic Concepts of Chemistry question

2023 · 30 Jan · Shift 1 · Q14

JEE MainChemistrySome Basic Concepts of ChemistryNumerical+4 / −1

Some amount of dichloromethane

\left(\mathrm{CH}_{2} \mathrm{Cl}_{2}\right)

is added to

671.141 \mathrm{~mL}

of chloroform

\left(\mathrm{CHCl}_{3}\right)

to prepare

2.6 \times 10^{-3} \mathrm{M}

solution of

\mathrm{CH}_{2} \mathrm{Cl}_{2}(\mathrm{DCM})

. The concentration of

\mathrm{DCM}

is

\underline{\hspace{2cm}}

ppm (by mass). Given : atomic mass : C = 12 H = 1 Cl = 35.5 density of

\mathrm{CHCl}_{3}=1.49 \mathrm{~g} \mathrm{~cm}^{-3}

Numerical answer

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