Can anyone get me on the right track?

  • Thread starter Thread starter yoshi6
  • Start date Start date
  • Tags Tags
    Track
AI Thread Summary
To separate the ions Ag+, Ca2+, and Ni2+ from a 0.1 M solution, the procedure should begin with the least reactive ion, which is silver (Ag+). By introducing a more reactive metal, such as copper, into the solution, silver can be displaced and precipitated out. Following this, calcium (Ca2+) can be separated using a suitable reagent that forms an insoluble compound with it, while nickel (Ni2+) can be separated last due to its higher reactivity. Filtration should be performed after each precipitation step to isolate the solid from the solution. This method effectively utilizes the reactivity series to achieve the separation of the ions.
yoshi6
Messages
63
Reaction score
0
Can anyone get me on the right track?

A solution contains the folllowing ions, each at a 0.1 M concentration.

Ag+(aq), Ca2+(aq), Ni2+(aq)

write out a procedure by which these ions may be sparated form each other and from the solution, clearly indicating the order of separation and when filtering should be done.

Please and thankyou...
 
Physics news on Phys.org
Well, here's a hint: the least reactive of substances are the most easily displaced from a solution, so the order of separation would clearly be from the least reactive to the most.
 
hmmm...I am still confused as to what kind of a procedure, what does it mean by this?
 
anyone have anything to add?? thanks!
 
If you place a strip of copper into a silver nitrate solution, the copper would force (displace) the silver out from the solution, right? The concept is basically the same here.
 
Please remember to show your own work first. Also, please take notice that the thread has been moved to the homework and coursework forum, where similar questions should be posted in the future.
 
Thread 'Confusion regarding a chemical kinetics problem'
TL;DR Summary: cannot find out error in solution proposed. [![question with rate laws][1]][1] Now the rate law for the reaction (i.e reaction rate) can be written as: $$ R= k[N_2O_5] $$ my main question is, WHAT is this reaction equal to? what I mean here is, whether $$k[N_2O_5]= -d[N_2O_5]/dt$$ or is it $$k[N_2O_5]= -1/2 \frac{d}{dt} [N_2O_5] $$ ? The latter seems to be more apt, as the reaction rate must be -1/2 (disappearance rate of N2O5), which adheres to the stoichiometry of the...
Back
Top