Cl
Co
Cl ClCl
2-
blue
Co
H2O
H2O OH2
OH2
OH2
OH2
2+
pink
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This table is designed as an outline for the experiment, but it is not designed to replace the published procedure
Numbers in parentheses refer to steps in the published procedure. Numbers in bold refer to drops of solution to add.
1 2 3 4 5
A(6) 10 NaHSO4(aq)
(7) thymol blue
(8) Na2SO4(aq)
(6) 10 NaHSO4(aq)
(7) thymol blue (6) 10 NaHSO4(aq)
(7) thymol blue
(9) NaHSO4(s)
(6) 10 NaHSO4(aq)
(7) thymol blue
(11-15) hot/cold
(6) 10 NaHSO4(aq)
(7) thymol blue
(11-15) hot/cold
B(22) 20 MgCl2(aq)
(24) 10 NaOH(aq)
(25) HCl(aq)
look for changes
in amount of ppt
(22) 20 MgCl2(aq)
(24) 10 NaOH(aq)
(26) Na4EDTA(aq)
(22) 20 MgCl2(aq)
(23) phenolphthalein
(24) 10 NaOH(aq)
(27-30) hot/cold
(22) 20 MgCl2(aq)
(23) phenolphthalein
(24) 10 NaOH(aq)
(27-30) hot/cold
C(35) 25 CoCl2(eth)
(36) H2O
(37) HCl(aq)
(38) AgNO3(aq)
(39) CoCl2(eth), H2O
(40) alcohol
(42) hot/cold
(41) CoCl2(eth)
(A) HSO4-(aq) + H2O(l) DH3O+(aq) + SO4-2(aq)
(B) Mg(OH)2(s) DMg+2(aq) + 2OH-(aq)
(C) CoCl4-2(aq) + 6H2O(l) D Co(OH2)6+2(aq) + 4Cl-(aq)
blue pink