ACIDS AND ALKALI

Corrosive

Acids The word “acid” means “sour” in latin.

Everyday examples: Lemon Juice (citric acid), vinegar, Hydrochloric Acid and Sulfuric Acid.

If a substance is an acid it is know as “acidic”

Some acids are not corrosive and found in our food.

Example 1: Citric acid

Example 2:Tartaric acid

Example 3:Ascorbic acid

Example 4:Methanoic acid

Example 5:Hydrochloric acid

Example 6:Lactic acid

Example7:Uric acid

What is the acid in vinegar?

Ethanoic acid. Also ethanoic acid is

produced from wine.

But how can we get ethanoic acid from wine??

time Ethanol + Oxygen ethanoic acid If you want to speed the chemical reaction

leave the bottle opened.

What are organic acids?

All acids of animal and plant origin including ethanoic acid are said to be organic acid EXCEPT hydrochloric acid

What are mineral acids? They are not produced by living things. Geber ,chemist, discovered them . The first mineral was discovered

is :Nitric acid ,later they discovered sulfuric acid and hydrochloric acid.

Uses of nitric acid: They use it to separate silver and gold

as it dissolve silver but does not dissolve the gold.

Alkalis Opposite of acids. Equally as corrosive and dangerous as

acids. Alkalis are soluble in water”

How would you know if a substance is an acid or a base? The LITMUS test (Indicator Test)

How would you know how strong an acidic or a base is? pH scale. What does pH stand for? What does pH mean?