1.

To make a saturated solution, 36 g of sodium chloride is dissolved in 100 g of water at 293 K. Find its concentration at this temperature.

Answer»

SOLUTION :Mass of SODIUM chloride (solute) = 36 g
Mass of water (solvent) = 100 g
Mass of solution
= Mass of solute + Mass of solvent
= (36 + 100) g = 136 g
Concentration of solution at 293 K
= `("Mass of solute")/("Mass of solution")xx100`
= `36/136xx100~~26.47%`
The concentration of the solution at the GIVEN temperature is 26.47 %.


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