Chemistry

posted by .

Which of the following is the most effective buffer system for a pH value of 7.45? Assume all are 1M

A. Carbonic acid and sodium bicarbonate
B. Sodium bicarbonate and sodium carbonate
C. Sodium dihydrogen phosphate and disodium hydrogen phosphate
D Hydrogen cyanide and sodium cyanide
E. Ammonia and ammonium chloride

Would you agree with C?

  • Chemistry -

    yes. Are you guessing or do you know how to do this?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Chemistry HELP

    Can someone help me with these....I just need to make sure they are right and if not can you help me figure out the right one's?
  2. Chemistry

    A student heats 5.128g of the sodium carbonate/sodium bicarbonate mixture to a constant mass of 4.256g. Determine the mass of sodium bicarbonate present in the mixture.
  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. chemistry

    Write the balanced chemical equation for the reaction of sodium bicarbonate with aqueous acetic acid to produce carbon dioxide, water, and sodium acetate. Follow the example set by the sodium bicarbonate.
  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(Please check answers)

    1)What is the pH of a saturated solution of lead(II) hydroxide?
  7. chemistry

    What are the balanced equations and the net ionic equations for the following reactions?
  8. Chemistry check and help

    what is ... Sodium bisulphate hydroiodic acid ammonium dihydrogen phosphate Zn(HCrO4)2 Calcium metal ferrous bromide sodium carbide phosphate radical Check... sodium bicarbonate NaHCO3
  9. chemistry

    i need help with writing nomenclature for the formula and the compounds examples: Sodium bisulphate hydroiodic acid ammonium dihydrogen phosphate Zn(HCrO4)2 Calcium metal ferrous bromide sodium carbide phosphate radical liquid mercury …
  10. 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 …

More Similar Questions