Acids & Bases Flashcards
Bases
Indigestion tablets soap Bread soda Soap Toothpaste protein and window cleaner shampoo
Acids in the lab
Hydrochloric Acid-also found in the stomach
Sulphuric Acid-also found in car batteries
Bases in the lab
Sodium Hydroxide-NaOH
Limewater-Ca(OH)
2
Acid
Lemons Vinegar Vit C Grapes Rhubarb Fizzy Drinks Tea Apples
pH
We can tell how acidic or basic a substance is by measuring something called pH
Alkali
Ia base that dissolves in water is called an alkali e.g.drain cleaner (sodium hydroxide)
Neutral
If something is neither an acid nor a base, & has a pH of 7, then it is neutral
Neutralisation
If an acid a& base are mixed together in the right concentrations, then they neutralise each other.
A salt & water are produced
Indigestion
Excess stomach acid, take an antacid (anti-acid) which is a base
A bee sting
Is acidic:rubbing a base e.g. Bread soda will neutralise it
A wasp sting
Is alkaline: this needs to be treated with an acid e.g. Vinegar
Titration
An exper
Titration
An experiment to neutralise an acid (hydrochloric acid) with a base (sodium hydroxide) is called a titration
Indicator paper
Changes colour to tell us if something is an Acid or Base example litmus is a dye on indicator paper
Acids turn blue litmus paper
Red
