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Sodium bicarbonate and sodium carbonate dissolved in water use to make buffer solution. The Ka value of carbonic acid is 4.37 x 10^-7 and sodium carbonate is 4.68 x 10^-11.
a. Explain why buffers resist change when small acid and base is added.
b. State pH @ bicarbonate/carbonate would be effective.
c. State relative concentration of sodium bicarbonate vs. sodium carbonate in ideal buffer.
d. imagine 10 mL of .045 M NaOH is added to 50 mL of .025 M sodium bicarbonate and .035 M NaCO3. Calculate pH of solution.
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