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JEE Main 20244 AprilMorning Shift
Exam
JEE Main
Year
2024
Date
4 April
Shift
Morning Shift
Subject
Chemistry
Chapter
Solutions

JEE Main 2024 · 4 April · Morning Shift · Chemistry · Solutions

The Molarity (( M) ) of an aqueous solution containing (5.85 ~g )...

The Molarity ((M)\mathrm{M})) of an aqueous solution containing (5.85  g\mathrm{~g}) of NaCl in (500  mL\mathrm{~mL}) water is : (Given : Molar Mass (Na\mathrm{Na}: 23) and (Cl\mathrm{Cl}: 35.5 gmol−1\mathrm{gmol}^{-1}) )

Options

  1. A2
  2. B20
  3. C4
  4. D0.2

Correct answer

D. 0.2

Step-by-step solution

M=nNaClVsol (in L)M=5.8558.50.5=0.2M\begin{aligned} & \mathrm{M}=\frac{\mathrm{n}_{\mathrm{NaCl}}}{\left.\mathrm{V}_{\mathrm{sol}} \text{ (in } \mathrm{L}\right)} \\ & \mathrm{M}=\frac{\frac{5.85}{58.5}}{0.5}=0.2 \mathrm{M}\end{aligned}
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