chemistry

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The bottle of hydrogen peroxide from the store says it is a 3% solution by mass. What is its molal concentration?

  • chemistry -

    3% by mass means 3 g H2O2 and 97 g H2O.
    3 g H2O2 = ?? mols. mols =g/molar mass
    Then molality = mols/kg solvent. Post your work if you need additional assistance.

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