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    askchemistry Posts: 1, Reputation: 1
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    #1

    Oct 11, 2007, 09:18 PM
    dilution equation
    If you diluted the 0.50 M(molarity) sample to a final volume of 250mL, what is the new concentration of the iron (II) bromide?
    templelane's Avatar
    templelane Posts: 1,177, Reputation: 227
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    #2

    Oct 13, 2007, 01:24 PM
    concentration = the amount of something per unit volume

    Therefore the equation you want is
    concentration (moles/litre) = amount(moles)/volume (litres)

    Just remember to change your units from mL into litre and you'll be sorted.
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