silver bromine
Ag, Hg, Pb
dissociation reaction
[Note: The answer has been corrected as follows:] The equilibrium reaction is: AgBr(solid) <<---> Ag+aq + Br-aq A solution equilibrium constant, Ksp, is the product of the ion concentrations in water (aq): Ksp = [Ag+aq][Br-aq] = 5x10-13 and since [Ag+aq] = [Br-aq] when only AgBr is dissolved (pure solution), you can calculate (by taking square root of Ksp) that: [Ag+aq] = [Br-aq] = SQRT(5x10-13) = 7.1*10-7 mol/L By having such a small solution constant, you can hopefully see that there will be MUCH more AgBr(solid) than ions(aq), because silver bromide is rather insoluble.
Br- is chemical symbol for a bromide anion. It is not an 'equation', it can be a part of a chemical equation, like in this precipitation reaction (example) Ag+(aq) + Br-(aq) --> AgBr(s) .
the answer is Ag Br
Ag is the nuclear symbol for silver.
AgBr is a compound composed of silver (Ag) and bromine (Br) elements.
The ksp is defined as the product of the concentrations of the ions formed by dissolution of the solid (divided by the activity of the solid, which is conventionally taken to be 1). Therefore, [Br-] = 5.2 X 10-23/1.3 X 10-6 = 4.0 X 10-17, to the justified number of significant digits.
AgBr + Ag(NO)3 ----------> Ag+ + Br- Disregard Ag(NO)3 b/c of the common ion Ag and the fact that (NO)3 is a spectator ion. You use the Ksp of AgBr from the index in your book that equals 5.0*10^-13 If you look at your above equation, Ksp = [Ag] [Br] You know Ksp = 5.0*10^-13 You have also been given the concentration of Ag from Ag(NO)3 = 3.0*10^-2. You use this number because remember NO3 is always a spectator ion so [Ag] will equal the [Ag(NO)3] You equation should look like this. (Forget about doing the I.C.E on this one. Its not necessary. 5.0*10^-13-= [3.0*10^-2] [Br] Simply solve for [Br] by dividing 5.0*10^-13 by 3.0*10^-2. [Br] = 1.66*10^-11. Round for sig figs to = 1.7*10-11
Rule 3
The write way
Yes, there are other liquid metals besides silver (Ag) and bromine (Br). Some examples include mercury (Hg), gallium (Ga), and cesium (Cs). These metals have low melting points, allowing them to exist in liquid form at or near room temperature.