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March 27, 2017

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What mass of chromium II chlroide (CrCl2) is dissolved in 150.0mL of solution to prepare .250M solution?

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  • Chemistry - ,

    How many mols do you need? That's M x L = mols.
    Then mols = grams/molar mass. You knopw mols and molar mass, solve for grams.

  • Chemistry - ,

    g=.00461 ?

  • Chemistry - ,

    I don't think so. I think that is off by a factor of 1000. You can check yourself this way.
    mols CrCl2 = 0.00461g/122.9.
    Then M = mols/0.150 and that is not 0.25M.

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