Buffer Solutions and Henderson-Hasselbalch Equation
Learn the composition, preparation, and mechanism of buffer solutions, and use the Henderson-Hasselbalch equation to calculate buffer pH and select appropriate buffers.
Why this shows up in the exam
You will need to solve for buffer pH and understand buffer action in exam questions.
How NEET tests this
Practise it
These are real questions from past NEET papers that test this exact idea.
Which one of the following pairs of solutions is not an acidic buffer?
Push further
More challenging6 harder questions built from the past papers above — a step up in difficulty, with distractors designed so you can't get there by elimination. Written and checked by our reviewers, not from a real paper.
A buffer solution is prepared by mixing 100 mL of 0.1 M acetic acid (CH₃COOH) with 50 mL of 0.2 M sodium acetate (CH₃COONa). If the Ka for acetic acid is 1.8 × 10⁻⁵, what is the pH of the resulting solution?
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