Acids, Alkalis And Making Salts Flashcards
What numbers on the ph scale are acids
0-6
What number is neutral on the ph scale
7
What numbers are alkalis on the ph scale
8-14
Name two strong acids
Sulfuric acids
Citric acids
Name a weak acid
Rain water
What are the products of neutralisation reactions
Neutral
What is neautral on the ph scale
Water
Name a weak alkali
Washing up liquid
Name a strong alkali
Sodium hydroxide
Where is sodium hydroxide used
Used as oven cleaner
What the products to acid + alkali
Salt + water
What are the products of hydrochloric acid + sodium hydroxide
Sodium chloride + water
What is an indicator
Something that changes colour depending on wether its in an acid or an alkali
Acid turns litmus paper…
Red
Alkalis turn litmus paper…
Blue
What does a universal indicator give
The range of colours shown on the ph scALE
How can you use a universal indicator
By adding a few drops into a solution
what is the first step to making salt
add acid to the alkali using a pippete
what is the second step to making salt
chech the ph every few drops
what is the third step to making salt
when neutral boil off most of the water
what is the fourth step to making salt
leave solution to crystallise
