pH Curves (AQA A-Level Chemistry): Quizzes

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pH Curves
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What happens to pH in a strong acid-strong base titration near the equivalence point?

Increases sharply

How does a weak acid-strong base curve start compared to a strong acid-strong base curve?

At a higher pH (weakly acidic)

What characterises the pH change in a strong acid-weak base titration at equivalence point?

Smaller, gradual shift

What is true about weak acid-weak base titration curves?

Very gradual change at equivalence point

If a titration starts at pHpH 33, what is being added?

A base to an acid

If the initial pH is 1010, what substance is being added during the titration?

An acid to a base

At what pH is the equivalence point for a strong acid-strong base titration?

Near pHpH 77

Which indicator is preferred for a weak acid-strong base titration?

Phenolphthalein

Which indicator suits a strong acid-weak base titration?

Methyl orange

How should titrant be added when plotting a pH curve experimentally?

In small increments

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Rate Equations (A Level only)

Equilibrium constant (Kp) for Homogeneous Systems (A Level only)

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Thermodynamics (A Level only)

Rate Equations (A Level only)

Equilibrium constant (Kp) for Homogeneous Systems (A Level only)

Electrode Potentials & Electrochemical Cells (A Level only)

Fundamentals of Acids & Bases (A Level only)

Further Acids & Bases Calculations (A Level only)

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