chemistry

posted by .

How could you use a precipitation reaction to separate the following pair of cations: K^+ and Hg2 ^2+? (write the formula and net formula for each reactant)?
The answer is
Hg2 ^2+ (aq) + 2Cl- (aq) = HgCl2(s) but how do I work it out?

  • chemistry -

    Are you asking how you know to write this equation. You must know solubility rules. Almost all (but not all) K compounds are soluble. Hg(I) chlorides are not soluble. If you don't have the solubility rules memorized here is a simplified set for you to peruse.
    http://www.files.chem.vt.edu/RVGS/ACT/notes/solubility_rules.html

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    A solution is prepared by mixing 13.00 ml of .0021 M aqueous Hg2(NO3)2 with 25 ml of .015M HCL. Assme that volumes are additive. a) Will precipitation occur?
  2. Chemistry

    Could someone please help me with these two questions. I am having trouble. 1. What is the molarity of a solution if 48.0 mL of a 0.220 M solution is required to neutralize a 25.0-mL sample of the solution?
  3. chemistry

    which of the followign reactions is the complete ion equation for the reaction between sodium sulfide and mercury(II) chloride?
  4. CHEMISTRY FORMULA

    How would you write the chemical formula for Mercury(I) nitrate. i have Hg(NO3)2 since the charge of nitrate is -2 and Mercury's is 1. However, upon checking online i found that the correct formula is Hg2(No3)2. I don't understand …
  5. chemistry

    group 1 cations: im doing a lab report for a experiment we did today. we had a known and we checked it for pb^+2, Hg2^+2, and Ag^+1. we have to write our observations for: A Precipitation of group 1. what does this mean?
  6. Chemistry

    Use the given data and calculate the enthalpy change for the following: a) B2O3(s)+3COCL2(g)--->2BCL3(g)+3CO2(g) b)Hg(l) +2Ag+(aq)--->Hg2+(aq)+2Ag(s) compound: B2O3(s) COCL2(g) BCL3(g) CO2(g) Ag+ (aq) Hg2+ (aq) Delta H (standard …
  7. chemistry 105

    Complete and balance each of the following equations, some may have no reactions. NaNO3(aq)+KCl(aq)--> NaCl(aq)+Hg2(C2H3O2)2(aq)--> note that Hg(I)^+1 interacts with another Hg(I)^+1 ion to produce the cation Hg2^2+ (NH4)2SO4(aq)+CuCl2(aq)-->
  8. chemistry

    Write the balanced formula equation, complete ionic equation, and net ionic equation. If no precipitate forms, write "No reaction" a) Hg2(NO3)2 (aq) + CuSO4 (aq) b) Ni(NO3)2 (aq) + CaCl2 (aq) c) K2CO3 (aq) + MgI2 (aq) d) Na2CrO4 (aq) …
  9. Chemistry

    Express your answer as a chemical formula. 1.Cr^-3 and Br^- 2. Fe^3+ and O^2- 3.Hg2^2+ and CO3^2- 4.Ca^2+ and CIO^3- 5. NH^+4 and PO4^3-
  10. Chemistry

    Can the mercury cation (Hg2+) oxidize silver metal to aqueous silver cation?

More Similar Questions