How much amount of $NaCl$ should be added to $600 \ g$ of water $(\rho=1.00 \ g / mL)$ to decrease the freezing point of water to $-0.2^{\circ} C ?$ ............. $gm$
(The freezing point depression constant for water $=2 \ K \ kg \ mol^{-1}$ )
(The freezing point depression constant for water $=2 \ K \ kg \ mol^{-1}$ )
- A$2.25$
- B$2$
- C$1.75$
- D$1.5$
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