CoCl2(aq) + NH3(aq) = ?
Cu(NO3)2(aq) +NH3(aq) = ?
CuSO4(aq) +NH3(aq) = ?
Could some one please tell me what the answers are?? I am stuck... what do I do with the NH3??? Thank you!!!!!
Ammonia forms a complex ion with Cu,Co, Ni, Zn, etc.
Cu(NO3)2 + 4NH3 ==> Cu(NH3)4(NO3)2
Well, well, well, seems like you're in a bit of a chemical pickle here! Don't worry, my friend, Clown Bot is here to help you out and bring a little laughter to your lab. Let's break it down!
For the first equation, CoCl2(aq) + NH3(aq), when ammonia (NH3) reacts with cobalt(II) chloride (CoCl2), it forms a complex called cobalt(II) ammine chloride, written as [Co(NH3)6]Cl2. So the answer here is [Co(NH3)6]Cl2, but don't worry about memorizing that! Just remember that ammonia can "ammine-ate" cobalt chloride.
Now, for the second equation, Cu(NO3)2(aq) + NH3(aq), the copper(II) nitrate (Cu(NO3)2) reacts with ammonia to form a deep-blue complex called tetraamminecopper(II) nitrate, written as [Cu(NH3)4](NO3)2. It’s quite a mouthful to say, but just think of it as a fancy blue dance party between copper and ammonia!
Lastly, CuSO4(aq) + NH3(aq) can form a pale blue complex called tetraamminecopper(II) sulfate, written as [Cu(NH3)4]SO4. Copper sure does enjoy ammonia as a dance partner! It's their special bond, you could say.
So there you have it! Just mix those chemicals with some ammonia, and you'll have some colorful complexes to brighten up your lab! Keep on experimenting and remember, science is all about having fun – just like juggling test tubes!
To determine the products of these reactions, it is important to consider the solubility and reaction tendencies of the compounds involved.
1. CoCl2(aq) + NH3(aq):
When cobalt(II) chloride (CoCl2) is mixed with ammonia (NH3), a complex ion formation occurs. The products of this reaction are [Co(NH3)6]Cl2 (orange complex) and HCl.
2. Cu(NO3)2(aq) + NH3(aq):
When copper(II) nitrate (Cu(NO3)2) is mixed with ammonia (NH3), a complex ion formation also occurs. The products of this reaction are [Cu(NH3)4(H2O)2](NO3)2 (deep blue complex) and H2O.
3. CuSO4(aq) + NH3(aq):
When copper(II) sulfate (CuSO4) is mixed with ammonia (NH3), another complex ion formation occurs. The products of this reaction are [Cu(NH3)4(H2O)2]SO4 (light blue complex) and H2O.
In all three reactions, ammonia forms complexes with the metal ions (Co, Cu) resulting in the formation of different colored complexes.
To determine the products of the given chemical equations involving NH3 (ammonia), we need to understand the properties of NH3 and the reactions it can undergo.
1. CoCl2(aq) + NH3(aq):
In this reaction, CoCl2 is a salt that dissolves in water, forming Co2+ and Cl- ions. NH3 is a weak base and can act as a ligand to form complex ions with transition metal ions like Co2+. The reaction between Co2+ and NH3 results in the formation of a coordination compound:
CoCl2(aq) + 6 NH3(aq) --> [Co(NH3)6]Cl2(aq)
The product is a complex ion, [Co(NH3)6]2+, accompanied by chloride ions, Cl-.
2. Cu(NO3)2(aq) + NH3(aq):
Similar to the previous case, Cu(NO3)2 is a salt that dissociates into Cu2+ and NO3- ions when dissolved in water. NH3 can act as a ligand to form a complex ion with Cu2+. Therefore, the reaction between Cu2+ and NH3 leads to the formation of a coordination compound:
Cu(NO3)2(aq) + 4 NH3(aq) --> [Cu(NH3)4](NO3)2(aq)
The product is a complex ion, [Cu(NH3)4]2+, accompanied by nitrate ions, NO3-.
3. CuSO4(aq) + NH3(aq):
In this case, CuSO4 is a salt that dissociates into Cu2+ and SO4^2- ions in water. However, NH3 cannot directly form a complex with Cu2+ in the presence of sulfate ions. Therefore, no significant reaction occurs between CuSO4 and NH3 in this case.
To solve similar questions, you should consider the metal ion's ability to form complex ions with NH3 and other ligands. You need to know the charges and formulas of the involved ions and be familiar with coordination chemistry principles.