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OCR Chemistry: Unit F322 (Post exam discussion) watch

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    Ive made a new thread to separate us.

    btw what was the answer to the question about the formation of NO?
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    (Original post by Presidential)
    Ive made a new thread to separate us.

    btw what was the answer to the question about the formation of NO?
    1/2 N2 + 1/2 02 >>>> NO
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    (Original post by FoOtYdUdE)
    1/2 N2 + 1/2 02 >>>> NO
    oh good, how do you get the second mark?
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    (Original post by Presidential)
    oh good, how do you get the second mark?
    Probably for saying the nitrogen comes from the air/atmosphere?? I can't remember. Or maybe u get 2 marks for balancing it.
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    (Original post by Presidential)
    oh good, how do you get the second mark?
    probably from saying where it comes from..
    i put air
    not sure if it was right...
    for my equation i put N2 + O2 --> 2NO
    same thing essentially
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    (Original post by Presidential)
    oh good, how do you get the second mark?
    Well I did N2 + 02 -> 2NO

    But N2 and O2 react together on a hot engine
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    I put N2 + 02 = 2NO

    Isnt that just the same?
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    What did you guys put for the type of reactant that is used to remove HCl. And also where does the 0.0369g come from (what was the question?)
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    (Original post by FoOtYdUdE)
    Probably for saying the nitrogen comes from the air/atmosphere?? I can't remember. Or maybe u get 2 marks for balancing it.
    fancy seeing you here!!
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    how did people find this exam, i thought it was reli hard
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    (Original post by Summerdays)
    What did you guys put for the type of reactant that is used to remove HCl. And also where does the 0.0369g come from (what was the question?)
    0.0369 must be f332 or i may have missed a question. I put naoh but im not sure though.
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    (Original post by Summerdays)
    What did you guys put for the type of reactant that is used to remove HCl. And also where does the 0.0369g come from (what was the question?)
    Any suitable Base. I wrote NaOH, lol. *summat to do with scrubbers* [neutralising]
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    (Original post by Summerdays)
    What did you guys put for the type of reactant that is used to remove HCl. And also where does the 0.0369g come from (what was the question?)
    I put an alkali

    And I believe that question was on the Salters exam, don't get confused about it
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    (Original post by nameless_one)
    fancy seeing you here!!
    Hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii iiiiiii dentist!
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    Woooooooooooh!!!!!!!!!
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    I put an Alkene.
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    any1 with an unofficial mark scheme would be greatly appreciated
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    I found the enthalpy change question quite difficult...i got a really odd number like 3.09x10^-3 :o:
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    wasn't the NO ques. only 1 mark?
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    (Original post by FoOtYdUdE)
    Hiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii iiiiiii dentist!


    (Original post by Summerdays)
    I put an Alkene.
    same =/
    im pretty sure its wrong though..
 
 
 
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