Recent content by howie222

thanks for the response, yes I did learn about Ksp values, and their significance, but its been awhile :smile: I'll look into that now. also, Remove the Ca^2+ ions by adding (NH_4)_2CO_3 any idea what precipitate this would form?

anyone? just want to make sure that i don't have to do anything with the fact that they all have a concentration of .1 M

just think about the example i gave you and think of any other ones you can think of... the displacement will never be greater than the distance. Think of distance as "distance travelled" So if you're going from point A to point B in any situation you can think of (around curves, over...

think about traveling half way around a circle, the distance traveled would be half the circumference, and the displacement would be the diameter. in this case distance > displacement distance can be equal to the displacement (if you travel in a straight line), but it can never be less.

thanks for your response =) I think you're right, but at the same time its a little odd that they would give me the concentrations... can i get a confirmation from someone? I'm pretty sure that I'm right based on that document you showed me, but just want to make sure. thanks

thanks for the link! 1) First remove the Ag+ ions by adding HCl(aq) which will precipitate as AgCl(s) 2) Filter 3) Remove the Ni^2+ ions by adding H2S(aq) which would form a NiH(s} precipitate. 4) filter 5)Remove the Ca^2+ ions by adding (NH_4)_2CO_3 forming a precipitate...

Hello everyone. I came here because I'm having trouble with a chemistry question an you guys seem to know what you're talking about =) I need to sepearate Ag^+, Ca^2+, and Ni^2+ ions from a solution. each of these is at a 0.1M concentration. I've never done this type of question...