Acidic buffer is a mixture of weak acid and its conjugate base or salt of that weak acid with another strong base in a molar ratio ranging from 101 to 10
An acidic buffer is prepared by mixing:
Held on 30 Apr 2023 · Verified 9 Jul 2026.
Strong acid and it's salt with strong base.
Strong acid and it's salt with weak base.
Weak acid and it's salt with strong base.
Equal volumes of equimolar solutions of weak acid and weak base. (The pKa of acid =PKb of the base)
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For the reaction 2SO₂(g) + O₂(g) ⇌ 2SO₃(g), ΔH = -198 kJ. Which condition favours forward reaction?
The unit of rate constant for a first-order reaction is:
The conjugate base of H₂SO₄ is:
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If the half-life $\left(\mathrm{t}_{1 / 2}\right)$ for a first order reaction is 1 minutes, then the time required for $99.9 \%$ completion of the reaction is closest to:
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