My teachers away for a few weeks and noone at school is able to explain me the dotpoint below (which is an assessment for me)
Perform a first-hand investigation to carry a range of tests including flame tests to identify two unknown solutions.
i. A cation which could be one of the following;
barium
calcium
lead
copper
iron(II)
iron(III)
ii. An anion which could be one of the following;
phosphate
sulfate
carbonate
chloride
Can someone post a flowchart (not from any textbooks) as to how I should go about this?
My school doesn't have Sodium Flouride or HF (safety reasons), and I need a way to identify each cation (im not worried about anions) properly.
To my knowledge:
NaCl prepcipitates Lead
Na2(SO4)2 precipitates Barium, Calcium
Na(OH) precipitates Iron(2), Iron(3), Copper
Since HF isn't used, I need a confirmatory test especially for Barium and Calcium.
I know Pb precipiates iodide, flame test distinguishes barium from calcium but i dont know about iron2,3 or copper
Perform a first-hand investigation to carry a range of tests including flame tests to identify two unknown solutions.
i. A cation which could be one of the following;
barium
calcium
lead
copper
iron(II)
iron(III)
ii. An anion which could be one of the following;
phosphate
sulfate
carbonate
chloride
Can someone post a flowchart (not from any textbooks) as to how I should go about this?
My school doesn't have Sodium Flouride or HF (safety reasons), and I need a way to identify each cation (im not worried about anions) properly.
To my knowledge:
NaCl prepcipitates Lead
Na2(SO4)2 precipitates Barium, Calcium
Na(OH) precipitates Iron(2), Iron(3), Copper
Since HF isn't used, I need a confirmatory test especially for Barium and Calcium.
I know Pb precipiates iodide, flame test distinguishes barium from calcium but i dont know about iron2,3 or copper