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ph of a 0.234 m nahco3 solution look up the appropriate ka or kb value
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Calculate the pH of a 0.234 M NaHCO3 solution. Look up the appropriate Ka or Kb value.
Answer:
To calculate the pH of a 0.234 M NaHCO3 solution, first find
the ka of carbonic acid which is = 4.3x10−7
Now
PH= 14 – ½ x pkb + ½ log(B)
Pka = −log (4.3x 10−7) = 5.3665
Pkb = 14 – 5.3665 = 8.6335
PH = 14 – ½ 8.6335 + ½ log 0.234
= 14 – 4.31675 + (− 0.31539)
= 9.36786
The PH of a 0.234M NaHCO3 solution is 9.36786
Answer:
To calculate the pH of a 0.234 M NaHCO3 solution, first find
the ka of carbonic acid which is = 4.3x10−7
Now
PH= 14 – ½ x pkb + ½ log(B)
Pka = −log (4.3x 10−7) = 5.3665
Pkb = 14 – 5.3665 = 8.6335
PH = 14 – ½ 8.6335 + ½ log 0.234
= 14 – 4.31675 + (− 0.31539)
= 9.36786
The PH of a 0.234M NaHCO3 solution is 9.36786
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