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    vickiep11's Avatar
    vickiep11 Posts: 1, Reputation: 1
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    #1

    Dec 2, 2013, 06:55 AM
    Chemistry question
    How many moles of NaCl is in 500 ml of 0.260 M NaCl?How many grams of NaCl is this?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #2

    Dec 2, 2013, 08:19 AM
    well first of all your formula is n=m/M
    n=number of moles
    m=mass of substance
    M=molar mass

    You need to find the mass number of the compound.
    neodarwinian's Avatar
    neodarwinian Posts: 74, Reputation: 1
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    #3

    Dec 2, 2013, 03:26 PM
    Molarity = moles of substance/Liters of solution ( convert mL to L )

    If you have moles you can get mass.
    bley's Avatar
    bley Posts: 1, Reputation: 1
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    #4

    Dec 4, 2013, 05:38 AM
    130g molarity=m\ml m=ml*molarilty
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