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JEE Mains · Chemistry · STD 11 - 1. Some basic concept of chemistry

\(500 \mathrm{~mL}\) जल में \(5.85 \mathrm{~g}\) \(\mathrm{NaCl}\) युक्त एक जलीय विलयन की मोलरता _______ \((M)\) है। (दिया है : मोलर द्रव्यमान \(\mathrm{Na}: 23\) और \(\mathrm{Cl}: 35.5 \mathrm{gmol}^{-1}\) )

  1. A \(20\)
  2. B \(0.2\)
  3. C \(2\)
  4. D \(4\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(0.2\)

Step-by-step Solution

Detailed explanation

\(\mathrm{M}=\frac{\mathrm{n}_{\mathrm{NaCl}}}{\mathrm{V}_{\mathrm{sol}}(\text { लीटर में })}\) \(\mathrm{M}=\frac{\frac{5.85}{58.5}}{0.5}=0.2 \mathrm{M}\)
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