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What mass of nacl would have to be dissolved in 1.000kg of water to raise the boiling point by 2.00c?
Wiki User
∙ 10y ago
2.00 C x 1.00 m/0.512 C=3.91 m
3.91 molal=3.91 mol/1 Kg
3.91 mol/ Kg x 58.5 g NaCl/1 mol=228.7 g NaCl
228.7 g/2=114.4 g NaCl
Wiki User
∙ 10y ago
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Salt will increase the boiling point and decrease the freezing point of water due to colligative properties. Table salt (NaCl) breaks into ions when dissolved. This lowers the vapor pressure of water. When salt dissolves its ions are moving around in the water, and some are near the surface. Rather than all the water just boiling off, some of these ions get in the way, which will raise the boiling point. This effect is not only caused by salt, but by dissolved substance. In general, the more ions or particles dissolved, the greater the effect on boiling point, so MgCl2 would have a greater effect on boiling point than NaCl, because MgCl2 dissociates into three ions instead of two.
Will elevation in boiling point be same for 0.1 m NaCl and 0.1m sucrose solution?
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RAISE
