What's the point of heating the solution to dryness in Part E when you're redissolving it in Part F?
be. To the solution, add six drops of 6 M NH OH and 5. Centrifuge and transfer the supernatant to a test tu 2 mL of 0.3 M ammonium oxalate, (NH+) C,0. If calcium ion is present, calcium oxalate will form as a white precipitate. complexes, MONHs), which prevent [Note: cobalt (II), copper (II) and nickel (II) form soluble precipitation from occurring.] ewill 2 mL of 1 is present a reddish-browp precipitate will form You will be assigned an u with only four of the eight cations from Part I. Repeat the above produce