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[" What volume of "75%" alcohol by weight "(d=0.80g/cm^(3))" must be used to prepare "150cm^(3)],[0%" alcohol by mass "(d=0.90g/cm^(3))?],[[" a) "67.5mL," (b) "56.25mL," (c) "44.44mL," (d) None of these "],[" for polutions of "NH_(2)" .(aq) solution "(d_(c)=0.986g/mL)" contain "2.5%]]

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