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A liquid of mass m(1) and density rho(1)...

A liquid of mass `m_(1)` and density `rho_(1)` is mixed with another liquid of mass `m_(2)` and density `rho_(2)`. If the volume of the mixture does not change, then what will be the density of the mixture?

Text Solution

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Mass of the mixture, `m=m_(1)+m_(2)`
Volume of the first liquid, `v_(1)=m_(1)/rho_(1)` and volume of the second liquid, `v_(2)=m_(2)/rho_(2)`
`therefore` Volume of the mixture, `v=v_(1)+v_(2)=m_(1)/rho_(1)+m_(2)/rho_(2)=(m_(1)rho_(2)+m_(2)rho_(1))/(rho_(1)rho_(2))`
`therefore` Density of the mixture, `m/v=((m_(1)+m_(2))rho_(1)rho_(2))/(m_(1)rho_(2)+m_(2)rho_(1))`.
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