[sagrr]

Hello,

I need to find the reactions of each of these chemicals with each of the other ones: NaOH, CuSO4, NaH2PO4, Pb(NO3)2, KI, AgNO3, BaNO3, HNO3. In other words I need to fill in this chart:

NaOH
CuSO4
NaH2PO4
Pb(NO3)2
KI
AgNO3
BaNO3
HNO3
             NaOH, CuSO4, NaH2PO4, Pb(NO3)2, KI, AgNO3, BaNO3, HNO3

I have been looking all over for the results. Please tell me how or where to find out the results (without actually doing them).

Thank You

[Borek]

Google for solubility rules.

[sagrr]

I've done this, and all I could find is rules to see if the chemicals were soluble or not. What I need to know is what the reaction is: if it forms a precipetate; what color, to what degree, if changes color, etc.

Thanks

[Borek]

If after mixing you have insoluble salt in solution, it will precipitate. That's half of your answer.

Once you know what will precipitate Google for these substances to find out their colors. You may also try some chemical databases from our links section.

[sagrr]

Im a bit confused. Aren't the solubility rules meant for measuring the solubility of ionic compounds in water?

[mike]

I don't know them all off the top of my head, however if you are going to fill out the table as you have drawn in your question try these hints:

i. you know that they won't react with themselves, right?
ii. acid + base --> salt + water
iii. and yes you should check out solubilties, for example AgNO3 is soluble but if you were to mix it with say KI you would get insoluble AgI (this is a halide test).

You need to think of each pair of chemicals in terms of what they would form if they rearranged/reacted, which salt that is formed will be soluble, which would be insoluble, maybe some produce no reaction.

[sagrr]

wow.. this is confusing. I'm probably not at the level of being able to do this yet... Can anyone help me out maybe by doing some examples for me?

[mike]

OK, first one:

NaOH + NaOH --> NaOH + NaOH

NaOH is the same as:

Na⁺ + OH^-

What about:

NaOH + HNO₃ (remember acid + base --> salt + water)

NaOH + HNO₃ --> NaNO₃ + H₂O

Now how about KI and AgNO₃?

in solution they will be:

K⁺ I^- Ag⁺ NO₃^-

now you have to look up or know what the properties of the products are, but the only possibilities are:

KNO₃ and AgI right?

KNO₃ is soluble and AgI is an insoluble salt (slightly yellow)