chemistry

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Calculate the molarity of a solution in which 0.75 moles of a solute are dissolved in 125g of solution (density of solution = 1.05g/mL).

I did this much:
1.05 * 1L/1000mL = 0.001 L

I don't really know what to do.

  • chemistry -

    What you did isn't much help. I don't understand it.
    molarity = mols/L of solution.
    you know mols. Use the density to convert 125 g solution to volume (liters) of solution.

  • chemistry -

    v = m/d
    v = 125g/1.05 g/mL
    v = 119.mL

    Then I converted mL to L
    119 mL x 0.001 L/1mL = 0.119 L

    Then,
    M = mol/L
    M = 0.75 mol/0.119 L
    Final answer: 6.3 mol/L

  • chemistry -

    That's my answer, too.

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