Question

A buffer solution contains 0.53 mol of carbonic acid (H2CO3) and 0.63 mol of sodium hydrogen carbonate (NaHCO3) in 1.90L. The Ka of carbonic acid (H2CO3) is Ka = 4.3e-07. (a) What is the pH of this buffer? pH = (b) What is the pH of the buffer after the addition of 0.28 mol of NaOH? (assume no volume change) pH = (c) What is the pH of the original buffer after the addition of 0.43 mol of HI? (assume no volume change) pH =

Name: a buffer solution contains 053 mol of carbonic acid h2co3 and 063 mol of sodium hydrogen carbonate nahco3 in 190l the ka of carbonic acid h2co3 is ka 43e 07 a what is the ph of this buffer ph b what i
Uploaded: 2023-08-23T04:49:05-08:00
Duration: 5 min
Channel: Oluwapelumi Kolawole
Description: a buffer solution contains 053 mol of carbonic acid h2co3 and 063 mol of sodium hydrogen carbonate nahco3 in 190l the ka of carbonic acid h2co3 is ka 43e 07 a what is the ph of this buffer ph b what i

          A buffer solution contains 0.53 mol of carbonic
acid (H2CO3) and 0.63 mol
of sodium hydrogen carbonate
(NaHCO3) in 1.90L.
The Ka of carbonic acid
(H2CO3) is
Ka = 4.3e-07.
(a) What is the pH of this buffer?
pH =  
(b) What is the pH of the buffer after the addition
of 0.28 mol of NaOH? (assume no volume change)
pH =  
(c) What is the pH of the original buffer after the addition
of 0.43 mol of HI? (assume no volume change)
pH =

Added by Sydney R.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Oluwapelumi Kolawole

08/23/2023

Step 1

Concentration of H2CO3 = moles of H2CO3 / volume of solution Concentration of H2CO3 = 0.53 mol / 1.90 L = 0.2789 M Concentration of NaHCO3 = moles of NaHCO3 / volume of solution Concentration of NaHCO3 = 0.63 mol / 1.90 L = 0.3316 M Now, we can use the Show more…

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A buffer solution contains 0.53 mol of carbonic acid (H2CO3) and 0.63 mol of sodium hydrogen carbonate (NaHCO3) in 1.90L. The Ka of carbonic acid (H2CO3) is Ka = 4.3e-07. (a) What is the pH of this buffer? pH = (b) What is the pH of the buffer after the addition of 0.28 mol of NaOH? (assume no volume change) pH = (c) What is the pH of the original buffer after the addition of 0.43 mol of HI? (assume no volume change) pH =