What is the percent-by-mass concentration of hydrogen peroxide, H₂O₂, in an aqueous solution that contains 30.0 g of hydrogen peroxide in 1.00 L of solution? The density of the solution is 1.00 g/mL. A)30.0% B)3.00% C)33.3% D)31.0% E)70.0%

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Quizplus · Accepted Answer

The percent-by-mass concentration is calculated using the formula: (mass of solute / mass of solution) * 100%. Given 30.0 g of hydrogen peroxide in 1.00 L (1000 mL) of solution with a density of 1.00 g/mL, the mass of the solution is 1000 g. Thus, the percent-by-mass concentration is (30.0 g / 1000 g) * 100% = 3.00%.

What Is the Percent-By-Mass Concentration of Hydrogen Peroxide, H2O2, in an Aqueous

What Is the Percent-By-Mass Concentration of Hydrogen Peroxide, H₂O₂, in an Aqueous