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

    Jun 18, 2012, 12:45 PM
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    Calculate the mass percent of sand, sodium chloride and copper (II) sulfate in a sample which yields the following data: mass of sample = 1.088g, mass of sand = 0.2255g, mass of copper (II) oxide = 0.1994g (assume 100% yield for each of the copper (II) reactions). The reactions are as follows:
    CuSO4 (aq) + 2NaOH (aq) = Cu(OH)2 (s) + Na2SO4 (aq)
    Cu(OH)2 (s) = CuO (s) + H2O (l)
    djrrn's Avatar
    djrrn Posts: 1, Reputation: 1
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    #2

    Jun 22, 2012, 08:01 PM
    When inhaling, a person's lungs expand from 4.2L to 5.3Lin volume. If the initial pressure is 755 mmHG and the temperature is held constant at 37 C, what is the pressure inside the lungs before any additional air is pulled in?
    yasmeen1's Avatar
    yasmeen1 Posts: 3, Reputation: 1
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    #3

    Oct 28, 2012, 05:33 PM
    For the following reaction, 0.580 moles of sodium chloride are mixed with 0.148 moles of silver nitrate.

    Sodium chloride (aq) + silver nitrate (aq) silver chloride (s) + sodium nitrate (aq)

    What is the FORMULA for the limiting reagent
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    yasmeen1 Posts: 3, Reputation: 1
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    #4

    Oct 28, 2012, 05:35 PM
    For the following reaction, 0.580 moles of sodium chloride are mixed with 0.148 moles of silver nitrate.

    Sodium chloride (aq) + silver nitrate (aq) silver chloride (s) + sodium nitrate (aq)

    What is the FORMULA for the limiting reagent?








    What is the maximum amount of silver chloride that can be produced? Moles
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #5

    Nov 8, 2012, 08:25 PM
    Yasmeen, did you see the sticky regarding HOMEWORK?
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