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Calculate the percentage composition in ...

Calculate the percentage composition in terms of mass of solution obtained by mixing `300 g` of a `25%` and `400 g` of a `40%` solution by mass.

Text Solution

Verified by Experts

`25%` sol. Means `25 g` solute in `100 g` solution `40%` solution means `40 g` solute in `100 g` solution
Mass of solute in `300 g` solution =`(25xx300)/(100)=75 g`
Mass of solute in `400 g` solution `=(40xx400)/(100)= 160 g`
`:.` Total mass of solute`=75+160=235 g`
`:.` Mass `%` in mixture `=(235)/(700)xx100=33.57%`
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Knowledge Check

  • Calculate the percentage composition in terms of mass of a solution obtained by mixing 300 g of a 25% and 400 g of a 40% solution by mass.

    A
    0.4357
    B
    0.2357
    C
    0.3357
    D
    0.6357

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