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    zakaria19's Avatar
    zakaria19 Posts: 5, Reputation: 1
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    #1

    May 11, 2012, 12:17 PM
    Chemistry
    You have been provided with a solution made of 3 components

    What will be the sum of their mole fraction justify your ans
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    zakaria19 Posts: 5, Reputation: 1
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    #2

    May 11, 2012, 12:18 PM
    Free class 11 ask question
    You have been provided with a solution made of 3 components

    What will be the sum of their mole fraction justify your ans
    zakaria19's Avatar
    zakaria19 Posts: 5, Reputation: 1
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    #3

    May 11, 2012, 12:19 PM
    free class 11 ask question
    a compound have 78.2%boron 21.8%hydrogen

    molar mass=27.6g/mol what is the molecular formula of compond
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    zakaria19 Posts: 5, Reputation: 1
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    #4

    May 11, 2012, 12:20 PM
    free class 11 ask question
    calculate the molality of 93%H2SO4 solution

    density=1.84g/ml
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    zakaria19 Posts: 5, Reputation: 1
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    #5

    May 11, 2012, 12:20 PM
    Free class 11 ask question
    Account for following

    1 the first ionization enthalpy of C is greater than B but second is reverse

    2 PbCl4is less stable than SnCl4 but PbCl2 is more stable than SnCl2

    3 gallium has higher ionization enthlapy than Al

    Compare trends of group 13 .14
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    Curlyben Posts: 18,514, Reputation: 1860
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    #6

    May 11, 2012, 12:49 PM
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