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Answer: Calculating pH Changes in BuffersA buffer is made
Chapter , Problem 2PE(choose chapter or problem)
Calculating pH Changes in Buffers
A buffer is made by adding 0.300 mol and 0.300 mol to enough water to make 1.000 L of solution. The pH of the buffer is 4.74 (Sample Exercise 17.1).
(a) the pH of the original buffer described in Sample Exercise 17.6 after the addition of 0.020 mol HCI and, (b) the pH of the solution that would result from the addition of 0.020 mol HCI to 1.000 L of pure water.
Questions & Answers
QUESTION:
Calculating pH Changes in Buffers
A buffer is made by adding 0.300 mol and 0.300 mol to enough water to make 1.000 L of solution. The pH of the buffer is 4.74 (Sample Exercise 17.1).
(a) the pH of the original buffer described in Sample Exercise 17.6 after the addition of 0.020 mol HCI and, (b) the pH of the solution that would result from the addition of 0.020 mol HCI to 1.000 L of pure water.
ANSWER:Step 1 of 3
According to the Henderson - Hasselbalch equation, pH of the solution is calculated by the following formula;
Here,
