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roblem 17.22- Enhanced - with Feedback ▼ Part A Calculate the pH of a buffer that is 0.225 M in NaHCO3 and 0.235 M in Na₂CO3. Express your answer to two decimal places. VE ΑΣΦ pH = 10.55 Submit → S Previous Answers Request Answer ? X Incorrect; Try Again; 3 attempts remaining This value falls outside the pH range of the buffer capacity, but at the given concentrations of weak acid and w Hasselbalch equation, shown below, is used to calculate the expected pH of a buffer when the concentrations
Part B Calculate the pH of a solution formed by mixing 65 mL of a solution that is 0.30 M in NaHCO, with 75 mL of a solution that is 0.22 M in Nag CO₂ Express your answer to two decimal places. IVE ΑΣΦΑ pH = 10.48 Submit ONIC Previous Answers Request Answer ? * Incorrect; Try Again; 3 attempts remaining Although this value falls within one pH unit of the pK, value of 10.25 (.e., within the pH range of the buffer capacity), it differs from the value that is pre Henderson-Hasselbalch equation. The Henderson-Hasselbalch equation, shown below, is used to calculate the expected pH of a buffer when the conce acid and weak base are known. base] acid pH = pK, + log Launch this video. During the video, you'll be asked a conceptual question about the example. After watching the video, try the question again. You can w again at any point.