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Summary

Summary OCR Chemistry A Chapter 20-21 Acids, bases, pH and buffers Powerpoint

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A powerpoint summarising chapters 20 and 21 of the OCR Chemistry A textbook, covering acids, bases, buffers, pH and buffers. Contains summarised points on main topics, worked examples and exam questions with answers, as well as quickfire questions to quiz yourself, perfect for a 10 minute revision or recap session!

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Institution
OCR
Module
Physical Chemistry









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Connected book

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Dave Gent A Level Chemistry for OCR A
  • Unknown
  • 9780198357650
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Written for

Study Level
A/AS Level
Examinator
OCR
Subject
Chemistry A
Unit
Physical Chemistry
All documents for this subject (13)

Document information

Summarized whole book?
No
Which chapters are summarized?
Chapter 20-21
Uploaded on
September 13, 2022
Number of pages
13
Written in
2022/2023
Type
Summary

Subjects

Content preview

Chapter 20:
Acids, Bases
and pH

, Quickfire Questions:
1. Define a Bronsted-Lowry acid.
2. Define a Bronsted-Lowry base.
3. Identify the conjugate acid-base pairs in the following reaction:
H2O + NH3 → OH- + NH4+

4. Calculate the pH of 0.04mol dm-3 of H2SO4

5. Calculate the concentration of HCl with a pH of 3.55
6. Calculate the pH of the solution formed when 50cm3 water is added to 100cm3 o
0.200mol dm-3 NaOH

7. Calculate the pH of the solution formed when 25cm3 of 0.250mol dm-3 H2SO4 is
added to 100cm3 of 0.200mol dm-3 NaOH

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