Acids And Bases Flashcards
Examples of everyday acids
Lemon juice (citric) Rain water (carbonic) Vinegar (ethanoic)
How do acids taste
Sour
Examples of lab acids
Hydrochloric Acid (HCL) Sulfuric acid (H2SO4)
Household bases
Oven cleaner Tooth paste Bleach Backing soda Indigestion tablets
Lab bases
Sodium Hydroxide (NaOH) Calcium Carbonate (ClCO3) Limewater (CaCOH2)
What is the pH scale
pH indicates the acidity or alkalinity of a solution; it ranges from 0-14
What pH is neutral
pH 7
Are acids low or high in pH
Low
Are bases low or high in pH
High
In an acid blue litmus paper….
Turns red
In an acid red litmus paper…….
Stays red
In a base blue litmus paper…….
Stays blue
In a base red litmus paper……
Turns blue
What do Universal Indicators do?
Change colour depending on the pH of a substance.
When acids and bases are mixed they produce
Salt and water
Burettes and pipettes are used to…….
Measure the volume of liquid acutely
Neutralisation in words
Hydrochloric Acid + Sodium Hydroxide = Sodium Chloride + Water
Chemical equations for neutralisation
HCl + NaOH = NaCl + H2O
How would you know if Hydrogen gas was present
It burns with a pop
What happen when you mix Zinc with Hydrochloric Acid
Zn + 2HCl
You get Zinc Chloride and Hydrogen gas
ZnCl2 + H2