Question

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


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Answer 1

Solution:

Mass of solute (NaCl) = 36 g

Mass of solvent (H2O) = 100 g

Mass of solution (NaCl + H2O) = 136 g

Concentration = Mass of solute/Mass of solution x 100

Concentration = 36/136 x 100 = 26.47%

Hence, the concentration of the solution is 26.47%

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Answer 2

ANSWER

• Mass of solute (sodium chloride) = 36 g

• Mass of solvent (water) = 100 g

• Mass of solution

• = Mass of solute + Mass of solvent

• = 36 g + 100 g = 136 g

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