chem

posted by .

100 mL of LiNO3, 0.241 M is mixed with 240 mL of 0.618 M Ca(NO3)2. What is the final concentration of NO3- in the solution?

  • chem -

    Just remember the definition of molarity. It is # mols/Liter of solution. That equation can be rearranged to give #mols = M x L.
    # mols LiNO3 = 0.241 M x 0.100 L = ??
    # mols NO3^- from LiNO3 is the same.
    # mols Ca(NO3)2 = 0.618 M x 0.240 L = ??
    # mols NO3^- from Ca(NO3)2 is twice that.
    Total mols NO3^- = mols from LiNO3 + mols from Ca(NO3)2 = ??
    Then molarity NO3^- = mols NO3^-/L of solution.
    The volume, of course, is 0.100 L + 0.240 L = ??

  • chem -

    0.508M

  • chem -

    0.943

  • chem -

    .508

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. 10th grade

    The addition of which nitrate salt will cause a decrease in the concentration of I-(aq)?
  2. Chemistry

    A volume of 45.3mL of .719 M Ca(NO3)2 solution is mixed with 82.3mL of 1.409M Ca(NO3)2 solution calculate the concentration of the final solution
  3. General Chemistry

    A student dissolved 4.00 g of Co(NO3)2 in enough water to make 100. mL of stock solution. He took 4.00 mL of the stock solution and then diluted it with water to give 275. mL of a final solution. How many grams of NO3- ion are there …
  4. chem

    I just need to know the net ionic equation and balance them. I figured the equation. but the net and balance is harder. Co(NO3)2 (aq) + NaOH (aq) = CoOH (s) + Na(NO3)2 (aq) Co(NO3)2 (aq) + Na2CO3 (aq) = CoCO3 (s) + Na2(NO3)2 (aq) Co(NO3)2 …
  5. chem

    I really need these answers to balance the net ionic equation or make it into one. Cu(NO3)2 (aq) + NaOH (aq) = CuOH (s) + Na(NO3)2 (aq) Cu(NO3)2 (aq) + NaI (aq) = CuI (s) + Na(NO3)2 (aq) Cu(NO3)2 (aq) + Na3PO4 (aq) = CuPO4 (s) + Na3(NO3)2 …
  6. Analytical Chem

    Describe the preparation of 100 mL 0.50 M solution of Fe(NO3)3 from a stock solutiion that is 60%(w/w)Fe(NO3)3 solution with a specific gravity of 1.110 g/ml. Calculate the molar NO3 concentration in the resulting solution. Molar Mass …
  7. AP CHEMISTRY

    30.0 mL of 0.10 M Ca(NO3)2 and 15.0 mL of 0.20 M Na3PO4 solutions are mixed. After the reaction is complete, which of these ions has the lowest concentration in the final solution?
  8. Chemistry

    Solubility Rules!! Homework problem I desperately need help with Solutions used: 6M HCl, 6M NaOH, 6M NH3, 3M H2SO4 Mixed with: Cr(NO3)3, Fe(NO3)3, Bi(NO3)3, Mg(NO3)2, Pb(NO3)2 please help me and tell me which form precipitates and …
  9. Chemistry

    100 mL of LiNO3, 0.241 M is mixed with 240 mL of 0.618 M Ca(NO3)2. What is the final concentration of NO3- in the solution?
  10. Chemistry

    A solution contains 23.1 ppm of dissolved Fe(NO3)3 (241.860g/mol), which dissociates completely into Fe3+ and NO3- (62.005g/mol) ions. Find the concentration of NO3- in parts per million

More Similar Questions