20% of acetic acid is dissociated when its 5 ~g is added to 500 ~mL of water. The depression in freezing point of such water is _ _ _ _ _ × 10⁻³ ^(°) C. Atomic mass of C, H and O are 12,1 and 16 a.m.u. respectively. [Given: Molal depression constant and density of water are 1.86 ~K ~kg ~mol⁻¹ and 1 ~g ~cm⁻³ respectively.]

Solutions: JEE Main 2023 Chemistry question

JEE Main 2023 · 1 Feb, Evening shift · Q16

JEE Main 20231 Feb, Evening shiftChemistryHardSolutions71× since 2002

20 \%

of acetic acid is dissociated when its

5 \mathrm{~g}

is added to

500 \mathrm{~mL}

of water. The depression in freezing point of such water is _________

\times 10^{-3}{ }^{\circ} \mathrm{C}

. Atomic mass of

\mathrm{C}, \mathrm{H}

and

\mathrm{O}

are 12,1 and 16 a.m.u. respectively. [Given : Molal depression constant and density of water are

1.86 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}

and

1 \mathrm{~g} \mathrm{~cm}^{-3}

respectively.]

Your answerType your answer. Integers and decimals are accepted.