1. Lesson Cover – pupil instructions
You will need to use your iPad.
Read through the presentation carefully.
Complete and then print the sheet listing ‘everyday acids’ (sheet 4)
Read the ‘hyperlinked’ news article about John George Haigh
Imagine that you are a news reporter – investigate headlines from the time and then write your own news report (using word or publisher) of the incident - refer to pages 6 and 7 for hints.
Note that £4000 in 1944 is the equivalent of about £ today
If you have time print out and stick the news article into your prep book
If you finish find answers to the squares on page 9 – extend the table on page 10 for your answers

2. What’s the link?

3. Acids at home
Acids have a sour taste, like vinegar, which contains ethanoic acid, and lemons, which contain citric acid.
These are safe to use in food, but they can still hurt if they get into a cut or into your eyes.
Other acids you will find at home are carbonic acid in fizzy drinks, tannic acid in tea and ascorbic acid which is vitamin C, found in fruit and vegetables.

4. What are acids used for in everyday life??
Everyday acids

5. Acid bath murderer Read the following article News article
How did John George Haigh use acid to try and get away with murder?

6. Write a headline and brief news report on the John Haigh case
You must include
You could include
A catchy headline
Knowledge of acids
An image / drawing

7. Keywords/ facts to include
6 victims
several weeks
Sulphuric acid
Dentures, red plastic handbag and 3 human gallstones remained
Corrosive
All DNA evidence destroyed
Dangerous method of body disposal
27 gallons needed

9. A substance with a pH of 7 would be???
Chemical formula for sodium hydroxide
NaOH
A substance with a pH of 3 would be ????
acidic
A substance with a pH of 7 would be???
Netural
Acid + metal carbonate →
Salt + water + carbon dioxide
CaCO3 is the formula for what?
Calcium carbonate
What is HCl
Hydrochloric acid
Acid + Alkali →
A substance with a pH of 12 would be?????
alkali
What is formed in a neutralisation reaction?
Salt + water
Salt + water
Nitric acid
HNO3 is the formula for which acid?
Teacher checks answer
Give 2 examples of substances that are alkali
Acids have a pH of ??
1 - 6
Describe what happens in a neutralisation reaction
Acid an alkali react together to form a salt and water
H2SO4
The formula of sulphuric acid is
What is the formula for hydrochloric acid?
HCl
Nitrate salts are made from which acid?
teacher checks answer
Give 1 example of a substance that is acidic
Green
a neutral substance turns universal indicator …………
What is the name of the compound with the formula CuO ?
Copper oxide
Potassium hydroxide
KOH is the formula for???
Nitric acid
(HNO3)
red
Universal indicator turns ……. In an acid
Purple/blue
Universal indicator turns ……… in an alkali
A neutral substance has a pH of ??? 7
sulphates
What is the name of the salt that is made from sulphuric acid?
Nitrogen monoxide, Nitrogen dioxide and Sulfur dioxide
Acid rain is caused by which pollutant gases?

10. Challenge What is the chemical formula for Sodium Hydroxide?
The chemical formula is ………
What is HCl?
2 Exampled of Alkalis
Etc……..
…….. ….