Excess KCN(aq) is added to a solution of [Co(H2O)6]2+. Identify the complex ion formed and predict its shape and charge.
[Co(CN)6]4-CN has -1 charge so overall charge is -4. CN- is similar sized ligand to H2O so shape is unchanged and remains octahedral.
JJ
Related Chemistry A Level answers
All answers ▸How can an aldehyde be distinguished from a ketone?
State the crystal structures of SiO2 and CO2 and why one has a higher melting point than the other.
Describe and explain the electrical conductivity of lithium oxide, Li2O, and lithium in their solid and molten states.
Bethan prepared some ethoxyethane (line 6) by reacting ethanol with concentrated sulfuric acid. She used 69g of ethanol (Mr=46) and obtained a 45% yield of ethoxyethane (Mr=74). Calculate the mass of ethoxyethane obtained.