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Question

To make a saturated solution, 15 g of sodium chloride is dissolved in 185g of water at 293K. The Concentration (in mass/mass %) of solution at this temperature is:


  1. 15

  2. 30

  3. 7.5 

  4. 8


Solution

The correct option is C

7.5 


Concentration inmassmass = massofsolutemassofsolute+massofsolvent  x 100 =  1515+185 x 100 = 7.5 %

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