I. $20g$ of NaOH (Molar mass = $\frac{40g}{mol}$) is dissolved in $500 cm^3$ of water. Molality of resulting…

I. $20g$ of NaOH (Molar mass = $\frac{40g}{mol}$) is dissolved in $500 cm^3$ of water. Molality of resulting solution is
  1. $0.1m$
  2. $0.5m$
  3. $1.5m$
  4. $1.0m$

Solution

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