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Home» class 9»Science» Chapter 2: Is Matter Around Us Pure

To make a saturated solution, 36 g of sodium chloride is disso... - Science

Question

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

Given:

  • Mass of solute (sodium chloride) = 36 g

  • Mass of solvent (water) = 100 g

Step 1: Calculate the mass of the solution.

\text{Mass of solution} = \text{Mass of solute} + \text{Mass of solvent}
\text{Mass of solution} = 36\text{ g} + 100\text{ g} = 136\text{ g}

Step 2: Calculate the concentration.

\text{Concentration} = \frac{\text{Mass of solute}}{\text{Mass of solution}} \times 100
\text{Concentration} = \frac{36}{136} \times 100
\text{Concentration} = 26.47\%

Therefore, the concentration of the solution is 26.47%.

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Chapter Info

Subject: Science
Class: class 9
Chapter 2: Is Matter Around Us Pure
Medium: English Medium