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    Which concentrated acid should be used to dissolve a carbonate of a group2 metal to carry out a flame test?

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    A: ETHANOIC ACID

    B: HYDROCHLORIC ACID

    C: NITRIC ACID

    D : SULFURIC ACID


    which one is it and why? thanks in advance
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    (Original post by upthegunners)
    Which concentrated acid should be used to dissolve a carbonate of a group2 metal to carry out a flame test?

    Spoiler:
    Show
    A: ETHANOIC ACID

    B: HYDROCHLORIC ACID

    C: NITRIC ACID

    D : SULFURIC ACID


    which one is it and why? thanks in advance
    hydrochloric acid is used for flame tests as the chlorides it produces are more volatile ...
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    (Original post by charco)
    hydrochloric acid is used for flame tests as the chlorides it produces are more volatile ...
    why is this? Or is this beyond the ASlevel syllabus?
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    (Original post by upthegunners)
    why is this? Or is this beyond the ASlevel syllabus?
    as it says in the post...

    "the chlorides it produces are more volatile"

    That means they have lower boiling points and will vaporise more easily.
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    (Original post by charco)
    as it says in the post...

    "the chlorides it produces are more volatile"

    That means they have lower boiling points and will vaporise more easily.
    why is this? What is the reason behind it? I only need an alevel response ..not a really complex one

    cheers
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    (Original post by upthegunners)
    why is this? What is the reason behind it? I only need an alevel response ..not a really complex one

    cheers
    Why is what?
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    (Original post by upthegunners)
    why is this? What is the reason behind it? I only need an alevel response ..not a really complex one

    cheers
    The inter molecular forces are weaker so less energy is required to break them.
 
 
 
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