chemistry

posted by .

what weight of sodium carbonate and sodium bicarbonate are required to make 500 mL of 0.35M BUFFER,pH 9.0 (pKa=9.8)

  • chemistry -

    pH = pKa + log(base)/(acid)
    Substitute and solve for b/a
    Then b + a 0.35.
    Solve the two equations simultaneously to obtain concns in molarity for base and acid. Then convert to grams for 500 mL of each.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry

    The Solvay process for the manufacture of sodium carbonate begins by passing ammonia and carbon dioxide through a solution of sodium chloride to make sodium bicarbonate and ammonium chloride. The equation for this reaction is H2O + …
  2. Chemistry

    The Solvay process for the manufacture of sodium carbonate begins by passing ammonia and carbon dioxide through a solution of sodium chloride to make sodium bicarbonate and ammonium chloride. The equation for this reaction is H2O + …
  3. chemistry

    what weight of sodium carbonate and sodium bicarbonate are required to make 500 mL of 0.35M BUFFER,pH 9.0 (pKa=9.8..)
  4. school

    What is the pH of 0.1 M formic acid solution?
  5. Chemistry

    The most abundant cation in seawater is the sodium ion. The evaporation of seawater gives a mixture of ionic compounds containing sodium combined with chloride, sulfate, carbonate, bicarbonate, bromide, fluoride, and tetrahydroxybrate. …
  6. Chemistry

    Which of the following is the most effective buffer system for a pH value of 7.45?
  7. Chemistry

    Plan how you would make 100mL of a buffer solution with a pH of 10.80 to be made using only sodium carbonate, sodium hydrogen carbonate and water. You should specify the amount of sodium carbonate and sodium hydrogen carbonate that …
  8. chemistry

    Plan how you would make 100mL of a buffer solution with a pH of 10.80 to be made using only sodium carbonate, sodium hydrogen carbonate and water. You should specify the amount of sodium carbonate and sodium hydrogen carbonate that …
  9. Chemistry

    A weighed amount of sodium chloride is completely dissolved in a measured volume of 4.00 M ammonia solution at ice temperature, and carbon dioxide is bubbled in. Assume that sodium bicarbonate is formed until the limiting reagent is …
  10. chemistry

    To create a 0.1 M carbonate buffer pH = 10.2. You choose to use a combination of HCO3- / CO32-. This buffer system has pKa = 9.9.   a) Calculate how much you need to weigh in each of the sodium salts, NaHCO3 and Na2CO3, to create …

More Similar Questions