Q.

A solution contains 30 g of sugar in 300 g of water. Calculate the concentration in terms of mass by mass percentage of the solution.

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a

12%

b

15.02%

c

9.09%

d

23%

answer is B.

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Detailed Solution

Given:  Mass of solute = 30g

               Mass of solute= 300g

Mass of solution   =  Mass of solute + Mass of solvent

                             =30 +300

                             =330g

Mass by mass percentage of solution =Mass of soluteMass of solution × 100

                                                                           = 30330× 100   

                                                                           =10011

                                                                          =9.09 %

The mass by mass percentage of the given solution is 9.09%  

 

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A solution contains 30 g of sugar in 300 g of water. Calculate the concentration in terms of mass by mass percentage of the solution.