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Anonymous asked in Science & MathematicsChemistry · 1 month ago

What is the molarity of the solution?

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1 Answer

  • 1 month ago

    atomic weight of lithium is 6.94 g/mol.

    atomic weight of bromine is 79.90 g/mol.

    molar mass of LiBr is therefore 86.8 g/mol.

    The 97.7 grams are 1.126 moles of LiBr.

    In 750 ml the molarity is

    (1.126 moles)/(0.750 L) = 1.50 mol/L.

    And that's the molarity (1.50 M)

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