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    why is it difficult to identify potassium ions when sodium ions are present? (1mark)

    thank you! x
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    I'm guessing you're talking about flame tests.

    In which case, have you actually done the flame test of these two ions/solutions?
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    (Original post by Pigster)
    I'm guessing you're talking about flame tests.

    In which case, have you actually done the flame test of these two ions/solutions?
    yup
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    (Original post by i_solemnly_swear)
    yup
    What observations did you make?
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    (Original post by i_solemnly_swear)
    why is it difficult to identify potassium ions when sodium ions are present? (1mark)

    thank you! x
    Because in flame testing, the Potassium ions make a lilac colored flame, but Sodium ions make a yellow colored flame. If both of the ions are present then the color will be masked/not shown properly/mix of both and it will be hard to identify it.


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    Lucky me, I had just revised this about 3 hours ago and I was just looking to do some questions. Perfect timing xx :lol:
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    (Original post by Pigster)
    What observations did you make?
    I can't remember, the practical was last week and we don't have our practical sheets at the moment
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    (Original post by TheEyeOfBaradDur)
    Because in flame testing, the Potassium ions make a lilac colored flame, but Sodium ions make a yellow colored flame. If both of the ions are present then the color will be masked/not shown properly/mix of both and it will be hard to identify it.


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    Lucky me, I had just revised this about 3 hours ago and I was just looking to do some questions. Perfect timing xx :lol:

    Thanks! And you're welcome xx
 
 
 
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