Answer in Brief
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.
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Solution
Mass of solute (sodium chloride) = 36 g (Given)
Mass of solvent (water) = 100 g (Given)
Then, mass of solution = Mass of solute + Mass of solvent
= (36 + 100) g
= 136 g
Therefore, concentration (mass by mass percentage) of the solution
`="Mmmmass of solute"/"Mass of solvent"xx100%`
`=36/136xx100%`
`= 26.47 %`
Concept: Concentration of a Solution
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