Asked by Anonymous
                What is the mass of hydrogen peroxide, H2O2, in a 250 g sample of a 2.75% by weight solution?
            
            
        Answers
                    Answered by
            DrBob222
            
    2.75% H2O2 means 2.76g H2O2/100 g soln.
Therefore, mass in 250g sample is
2.75 x (250/100) = ?
    
Therefore, mass in 250g sample is
2.75 x (250/100) = ?
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