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Q.

A solution is prepared by dissolving 90 ml of hydrogen peroxide in enough water to make 3000 ml of solution. Identify the concentration of the hydrogen peroxide solution.

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a

3%

b

10%

c

30%

d

5%

answer is A.

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Detailed Solution

Given: Volume of solute = 90 ml

             Volume of solution = 3000 ml 

Solution:

Volume by volume percentage of a solution = Volume of soluteVolume of solution× 100

                                                                                      = 903000× 100

                                                                                     =93

                                                                                    =3%

 The volume by volume percentage of the given solution is 3%

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