1.

36 g. of sodium chloride is dissolved in 100 g. of water at 300 Kelvin, find the concentration of mass by mass percent

Answer» MASS of Sodium CHLORIDE =36g
Mass of Water = 100g
TOTAL mass of solvent = 136g

Mass/mass %
= mass of solute /mass of solvent * 100
= 36 / 136 *100
= 26.4705%



ANS: 26.47%



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