Summary - Unit 5 - Principles and Applications of Science
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Course
Unit 5 - Principles and Applications of Science
Institution
PEARSON (PEARSON)
This document is a specification for the Pearson BTEC Level 3 National Extended Diploma in Applied Science. It outlines the content, structure, and assessment of the qualification, which covers key science concepts in biology, chemistry, and physics, as well as optional units covering topics such a...
Unit 5 chemistry revision booklet-
covers ALL chemistry unit 5!
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Unit 5- Inorganic Chemistry- Principles and applications of
science II (examined unit)
A definition of an acid is a substance that releases hydrogen ions, a hydrogen iron is a proton.
Bases is something that can take up H+, usually to make water.
Acid + base = salt + water
An alkali is a base that can dissolve in water.
Alkalis often have a hydroxide ion, OH
Common Acids
Hydrochloric acid (Hcl)
Nitric acid (HNO3)
Sulfuric acid (H2SO4)
Phosphoric acid (H3PO4)
Ethanoic acid (Ch3COOH)
Common vases and alkalis
Sodium hydroxide
Potassium hydroxide
Ammonium hydroxide
Sodium hydrocarbonate (bicarbonate of soda, in baking powder)
PH scale
pH = -log [h+]
‘Strong’ in this context means highly ionised
Weak means not much ionised
Hcl H+ + cl-
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