chemistry

posted by .

0.4324 g sample of a potassium hydroxide-lithium hydroxide mixture requires 28.28 ml of 0.3520 M HCl for its titration to the equivalence point. What is the mass percent lithium hydroxide in this mixture?

  • chemistry -

    You need two equations in two unknowns.
    mass KOH + mass LiOH = 0.4324g
    mols KOH + mols LiOH = 0.02828 x 0.3520
    -----------------
    Let X = mass KOH
    and Y = mass LiOH
    -----------------
    X + Y = 0.4324
    (X/molar mass KOH) + (Y/molar mass LiOH) = 0.02828 x 0.03520
    Solve the two equations for X and Y, then,
    mass % LiOH = (g LiOH/mass sample)*100 = ?
    Post your work if you get stuck.

  • chemistry -

    12.34%

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. chemistry.

    Lithium hydroxide reacts with carbon dioxide as follow. 2LiOH + CO2________ Li2CO3 + H2O What mass (in grams) of Lithium hydroxide is need to react with 11 g of carbon dioxide?
  2. chemistry

    A 0.4272-g sample of a potassium hydroxide – lithium hydroxide mixture requires 26.94mL of 0.3385M for its titration to the equivalence point. What is the mass percent lithium hydroxide in this mixture?
  3. chemistry

    A 0.4272-g sample of a potassium hydroxide – lithium hydroxide mixture requires 26.94mL of 0.3385M for its titration to the equivalence point. What is the mass percent lithium hydroxide in this mixture?
  4. chemistry

    Lithium metal dissolves in water to yield hydrogen gas and aqueous lithium hydroxide. What is the final concentration of hydroxide ions when 5.500 g of lithium metal is dropped into 750. mL of water?
  5. Chemistry

    Lithium hydroxide is used in the space program to remove carbon dioxide (frin respiration) in spacecraft. Specifically, lithium hydroxide, LiOH reacts with carbon dioxide, CO2 to form lithium carbonate Li2Co3, and water. 2 liOH + Co2 …
  6. Chemistry

    Lithium hydroxide is used in the space program to remove carbon dioxide (from respiration) in spacecraft. Specifically, lithium hydroxide, LiOH, reacts with carbon dioxide, CO2, ro form lithium carbonate, Li2CO3, and water. 2LiOH+CO2->Li2CO3+H2O, …
  7. CHEMISTRY

    Write the net ionic equation for the reaction between...(and MUST INCLUDE STATES, please post answers to all so i can verify if im correct and explanation to one of them) a) potassium hydroxide and copper(I) nitrate b) potassium sulfite …
  8. chemestry

    Which for the following is considered a weak base?
  9. chemistry

    0.4276-g sample of a potassium hydroxide – lithium hydroxide mixture requires 31.20 mL of 0.3315 M HCl for its titration to the equivalence point. What is the mass percent lithium hydroxide in this mixture?
  10. Chemistry

    0.4276-g sample of a potassium hydroxide – lithium hydroxide mixture requires 31.20 mL of 0.3315 M HCl for its titration to the equivalence point. What is the mass percent lithium hydroxide in this mixture?

More Similar Questions