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a person asked in Science & MathematicsChemistry · 1 decade ago

What is the mass% of a 3.0M H2SO4 solution if the solution has a density of 1.18g/mL?

Can someone explain how to solve this problem please?

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  • Steve Herra
    1 decade ago
    Favorite Answer

    Basis: 1 liter of solution

    grams solution in 1 liter= 1.18 g/ ml x 1000ml=1180

    mol of H2SO4 in 1 liter solution= 3mol/li x 1 li =3

    gram H2SO4 in 1li solution = 3 mol x 98 g H2SO4/mol H2SO4=294

    % H2SO4 in 3 molar solution= ( 294/1180 ) x 100 = 24.9 %

  • Dr.A
    Lv 7
    1 decade ago

    3.0 mol/L x 98.078 g/mol= 294.2 g/L of H2SO4 in this solution

    294.2 = % by mass x 1180/100

    % by mass = 24.9

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