Transition Elements (Naming Substances) check answers

[ScrubsFan]

Name the following substances.

a) [Cu(Cl4]2- - tetrachloridecopper(II) ion

b) Ag(NH3)2+ - diamminesilver ion

c) Cu(NH3)4SO4 - tetraamminecoppersulfate (or tetraamminecopper(II) sulfate)

d) Al(H2O)6Cl3 - hexaaquoaluminum(III) trichloride



I have no idea if any of these are right, but someone please help me out if there not.
Thanks.

 

[Gokul43201]

Name the following substances.

a) [Cu(Cl4]2- - tetrachloridecopper(II) ion

'chloro', not 'chloride'. Also, since this is an anionic complex, it should be 'cuprate'.

b) Ag(NH3)2+ - diamminesilver ion

Missing oxidation number for silver.

c) Cu(NH3)4SO4 - tetraamminecoppersulfate (or tetraamminecopper(II) sulfate)

Second try is better.

d) Al(H2O)6Cl3 - hexaaquoaluminum(III) trichloride

There should be no "tri" (in trichloride) - just "chloride" is sufficient. The number of chloride ions (ie.: 3) is determined by the oxidation number of the cation and the number of other ligands, if they are charged.

 

[Blueshift5]

Your answers are correct. The naming conventions for transition elements can be complex, but the key is to identify the central metal ion and its charge, followed by the ligands and their prefixes and suffixes. In these examples, the central metal ions are copper (Cu), silver (Ag), and aluminum (Al), and their charges are indicated by the Roman numerals II (2+), I (1+), and III (3+), respectively. The ligands are chloride (Cl), ammonia (NH3), and water (H2O), and their prefixes indicate the number of ligands attached to the metal ion (tetra, di, and hexa, respectively). The sulfate (SO4) anion is also present in one of the examples. Overall, your responses accurately reflect the correct names of the substances.