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    Hi can anyone outline the steps for the production of nitric acid ? Along with the reaction conditions ?
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    (Original post by z!D4N)
    lemme help u guys... some of the most important equations to remember are: (as i remember only cuz i dont wanna look at my textbooks)

    disproportionations:
    CI2 + 2NaOH --> NaCIO + NaCI + H2O (cold)
    CI2 + 2OH- --> CIO- + CI- + H2O (ionic)

    3CI2 + 6NaOH --> NaCIO3 + 5NaCI + 3H2O (hot)
    3CI2 + 6OH- --> CIO3 + 5CI- + 3H2O (ionic)

    on its own:
    3NaCIO --> NaCIO3 + 2NaCI (hot)
    3CIO- --> CIO3- + 2CI- (ionic)

    in acidic conditions:
    CIO- + 2H+ + 2e- --> CI- + H2O
    CIO3- + 6H+ + 6e- --> CI- + 3H2O

    metal oxides + water:
    Li2O + H2O --> 2LiOH
    Na2O2 + 2H2O --> 2NaOH + H2O2
    2KO2 + H2O --> K2O + H2O2 + O2

    metal + water: (the important exceptions)
    Mg + H2O --> MgO + H2 (hot steam)
    Mg + 2H2O --> Mg(OH)2 + H2 (cold, slow)

    metal nitrates decomposition:
    2Ca(NO3)2 --> 2CaO + 4NO2 + O2
    Na(NO3)2 --> NaNO2 + O2 (pale yellow nitrites)

    other equations are so common sense... these are enough and the most important...
    You could add these organic ones :
    ROH + PCL5 -------> RCL + POCL3 + HCL
    3POH + PBr3 -----> 3RBr + H3PO3
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    (Original post by PaX)
    Hi can anyone outline the steps for the production of nitric acid ? Along with the reaction conditions ?
    Yup that would be :
    4NH3 + 5O2 <-----> 4NO + 6H20 = Platinum as catalyst ,,, 900Celsius
    +
    2NO + O2 ---> 2NO2
    +
    3NO2 + H2O ------> 2HNO3 + NO
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    (Original post by PaX)
    Hi can anyone outline the steps for the production of nitric acid ? Along with the reaction conditions ?
    You react ammonia with oxygen, which is a reversable reaction:

    4NH3 + 5O2 <-----> 4NO + 6H20 (thx to FiDoDido)

    This happens at 7 atm, 900*C and with the help of a Platinum-Rhodium catalyst.

    The NO reactus further with oxygen on cooling to give NO2, which is them reacted to oxygen and water to make nitric acid.

    The uses are fertilisers, and the manufacture of explosives.
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    Thanks!
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    (Original post by mik1a)
    You react ammonia with oxygen, which is a reversable reaction:

    4NH3 + 5O2 <-----> 4NO + 6H20 (thx to FiDoDido)

    This happens at 7 atm, 900*C and with the help of a Platinum-Rhodium catalyst.

    The NO reactus further with oxygen on cooling to give NO2, which is them reacted to oxygen and water to make nitric acid.

    The uses are fertilisers, and the manufacture of explosives.

    Spot On
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    ok i need a bit of help on ionic equations

    for like..What's the ionic eq for reaction of lead nitrate and potassium chloride

    first write out the ions right..?

    Pb2+ + 2NO3- + K+ +Cl- ---> PbCl2 + KNO3

    they all haven't changed charge.. so which are the spectator ions
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    (Original post by daydream)
    ok i need a bit of help on ionic equations

    for like..What's the ionic eq for reaction of lead nitrate and potassium chloride

    first write out the ions right..?

    Pb2+ + 2NO3- + K+ +Cl- ---> PbCl2 + KNO3

    they all haven't changed charge.. so which are the spectator ions
    well if this a precipitation reaction then the spectator ions are K and NO3.. this is becuz there is a redox reaction :
    Pb2+(aq) + 2e- --------> Pb(solid)
    2Cl-(aq) ----> 2e- + Cl2

    They form a solid which is neutral ..
    i am not sure of all of this .. it depends on which one is solid .. PbCL2 or KNO3 .. the solid one experience a redox reaction so the other product consist of spectator ions.
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    i am sure of neutralization reaction .. example:
    NaOH + HCl ------> NaCl + H2O

    net ionic equation is:
    OH- + H+ -----> H2O
    the Na+ and Cl- are spectator ions becuz they form compound which already consist of ions .. however the water doesnt consisit of ions ..
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    lol ok.. i'll keep that in mind =___=" still dun quiet get it thought
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    (Original post by daydream)
    lol ok.. i'll keep that in mind =___=" still dun quiet get it thought
    LooL .. well look at both side of equation .. cancel the ion which are shown in both sides of equation...

    Pb2+(aq) + 2NO3-(aq) + K+(aq) +Cl-(aq) ---> PbCl2(s) + K+ + NO3-(aq)

    well NO3 is shown in both sides of equation
    and K+ too .. so they are canceled out as spectator ions :P
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    (Original post by FidoDiDo)
    LooL .. well look at both side of equation .. cancel the ion which are shown in both sides of equation...

    Pb2+(aq) + 2NO3-(aq) + K+(aq) +Cl-(aq) ---> PbCl2(s) + K+ + NO3-(aq)

    well NO3 is shown in both sides of equation
    and K+ too .. so they are canceled out as spectator ions :P
    but ain't K+ and NO3- gonna form bonds? as in KNO3..?
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    (Original post by daydream)
    but ain't K+ and NO3- gonna form bonds? as in KNO3..?
    Yea but they r soluble in water .. so they r free to move in the solution.. just like at the left hand side of the equation.. however PbCl2 is insoluble in water .. so the crystalline lattice doesnt break down ..
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    ques .. What is the structure of CCl4 compound??
    Simple molecular? ?
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    (Original post by FidoDiDo)
    ques .. What is the structure of CCl4 compound??
    Simple molecular? ?
    Yes, simple molecular.
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    Why doesnt HCl has H-bonds ???
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    Another question ..
    Why the Bond energy decrease in this order:
    Cl-Cl > Br-Br > I-I
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    (Original post by FidoDiDo)
    Another question ..
    Why the Bond energy decrease in this order:
    Cl-Cl > Br-Br > I-I

    becuz cl is more electronegative than Br, which is more electronegative than iodine...
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    (Original post by FidoDiDo)
    Why doesnt HCl has H-bonds ???
    urm hydrogen bonds are only formed between.. H and O
    H and N
    and H and Flourine

    urm dunno y? but i think thats the only 3 u need to no...
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    (Original post by Dust)
    urm hydrogen bonds are only formed between.. H and O
    H and N
    and H and Flourine

    urm dunno y? but i think thats the only 3 u need to no...
    i thought that H-bonds form when H bonded to highly electronegative element .. and Cl has same electronegativity than N
    ANYWHo thanx pal .. Wish me Luck .. tomorow my exam ..
    i am Off now .. Byez
 
 
 

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