Chemistry Acid-Base Colours (+3 ions) acid and base metal ions colours 0.0 / 5 ? ChemistryAcids, bases and saltsA2/A-levelAQA Created by: amyCreated on: 06-05-13 11:03 What colour is [Fe(H2O)6]3+? Purple/yellow/brown 1 of 33 What colour is [Al(H2O)6]3+? Colourless 2 of 33 What colour is [Cr(H2O)6]3+? Ruby 3 of 33 What is formed when a little OH- is added to [Fe(H2O)6]3+? Fe(H2O)3(OH)3 4 of 33 What colour is seen when a little OH- is added to [Fe(H2O)6]3+? Brown precipitate 5 of 33 What is formed when a little OH- is added to [Al(H2O)6]3+? Al(H2O)3(OH)3 6 of 33 What colour is seen when a little OH- is added to [Al(H2O)6]3+? White precipitate 7 of 33 What is formed when a little OH- is added to [Cr(H2O)6]3+? Cr(H2O)3(OH)3 8 of 33 What colour is seen when a little OH- is added to [Cr(H2O)6]3+? Green precipitate 9 of 33 What is formed when an excess of OH- is added to [Fe(H2O)6]3+? Fe(H2O)3(OH)3 10 of 33 What colour is seen when an excess of OH- added to [Fe(H2O)6]3+? Brown precipitate 11 of 33 What is formed when an excess of OH- is added to [Al(H2O)6]3+? [Al(OH)4]- 12 of 33 What colour is seen when an excess of OH- added to [Al(H2O)6]3+? Colourless solution 13 of 33 What is formed when an excess of OH- is added to [Cr(H2O)6]3+? [Cr(OH)6]3- 14 of 33 What colour is seen when an excess of OH- added to [Cr(H2O)6]3+? Green solution 15 of 33 What is formed when a little NH3 is added to [Fe(H2O)6]3+? Fe(H2O)3(OH)3 16 of 33 What colour is seen when a little NH3 added to [Fe(H2O)6]3+? Brown precipitate 17 of 33 What is formed when a little NH3 is added to [Al(H2O)6]3+? Al(H2O)3(OH)3 18 of 33 What colour is seen when a little NH3 added to [Al(H2O)6]3+? White precipitate 19 of 33 What is formed when a little NH3 is added to [Cr(H2O)6]3+? Cr(H2O)3(OH)3 20 of 33 What colour is seen when a little NH3 added to [Cr(H2O)6]3+? Green precipitate 21 of 33 What is formed when an excess of NH3 is added to [Fe(H2O)6]3+? Fe(H2O)3(OH)3 22 of 33 What colour is seen when an excess of NH3 is added to [Fe(H2O)6]3+? Brown precipitate 23 of 33 What is formed when an excess of NH3 is added to [Al(H2O)6]3+? Al(H2O)3(OH)3 24 of 33 What colour is seen when an excess of NH3 is added to [Al(H2O)6]3+? White precipitate 25 of 33 What is formed when an excess of NH3 is added to [Cr(H2O)6]3+? [Cr(NH3)6]3+ 26 of 33 What colour is seen when an excess of NH3 is added to [Cr(H2O)6]3+? Purple solution 27 of 33 What is formed when (CO3)2- is added to [Fe(H2O)6]3+? Fe(H2O)3(OH)3 + Bubbles of CO2 28 of 33 What colour is seen when (CO3)2- is added to [Fe(H2O)6]3+? Brown precipitate 29 of 33 What is formed when (CO3)2- is added to [Al(H2O)6]3+? Al(H2O)3(OH)3 + Bubbles of CO2 30 of 33 What colour is seen when (CO3)2- is added to [Al(H2O)6]3+? White precipitate 31 of 33 What is formed when (CO3)2- is added to [Cr(H2O)6]3+? Cr(OH)3 + Bubbles of CO2 32 of 33 What colour is seen when (CO3)2- is added to [Cr(H2O)6]3+? Green precipitate 33 of 33
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