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Summary acids, bases,pH, titration curves chemistry notes £3.06   Add to cart

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Summary acids, bases,pH, titration curves chemistry notes

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summary notes on acids, bases, pH, buffers and titration curves (chapters 20-21 on the kerboodle textbook) for module 5 revision. diagrams and example calculations included

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  • Chapter 20-21
  • June 9, 2024
  • 12
  • 2023/2024
  • Summary
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OCR-A
MODULE 5



ACIDS & BASES
CHEMISTRY
___


Notes

Types of acids

Monoprotic: release 1 H+ ion per molecule

Diprotic: release 2 H+ ions per molecule




Conjugate acid-base pairs

, HA + H₂O ⇌ A⁺ + H₃O⁺

B + H₂O ⇌ BH⁺ + OH-

pH of strong acids




Logarithmic scale

Change in 1 pH number = x10 difference in [H⁺]

Dilution

Q) 100 cm³ added to 50 cm³ of O.1 mol dm-3

O.1 x (50/150) = 0.03

-log (0.03) = 1.48

Q) 250 cm³ of 0.3 mol dm-3

0.3 x (250/1000) = 0.075

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