Acids and Alkalis - Identifying pH with Indicators
1 / 36
Éléments de cette leçon
Slide 1 - Diapositive
Slide 2 - Diapositive
Slide 3 - Diapositive
Slide 4 - Diapositive
Sort the keywords into the correct box.
Acid
Alkali
Both
Sour
Bitter
Irritant
Corrosive
Lemons
Vinegar
Toothpaste
Soap
Bleach
Wear googles
Slide 5 - Question de remorquage
Mrs Walker dissolves 3 spoons of coffee powder in some hot water to make her morning cup of coffee.
Solute:
Solvent:
Solution:
Coffee powder
Hot water
Strong coffee
Slide 6 - Question de remorquage
A mixture of a substance (solid, liquid or gas) and a liquid.
A substance (solid, liquid or gas) that is dissolved in a liquid.
A liquid in which a substance dissolves.
Match the words to the definitions.
Solvent
Solute
Solution
Slide 7 - Question de remorquage
Slide 8 - Diapositive
Slide 9 - Diapositive
Which solution is more concentrated?
A
A
B
B
Slide 10 - Quiz
Which solution is more concentrated?
A
A
B
B
Slide 11 - Quiz
Which solution is more concentrated?
A
A
B
B
Slide 12 - Quiz
Which solution is more corrosive?
A
A
B
B
Slide 13 - Quiz
Put the acids in order from most dilute to most concentrated.
Dilute
Concentrated
Slide 14 - Question de remorquage
How could you make this solution more concentrated?
Slide 15 - Question ouverte
Slide 16 - Diapositive
Slide 17 - Diapositive
Slide 18 - Diapositive
Slide 19 - Diapositive
Slide 20 - Diapositive
Name a weak acid
Slide 21 - Question ouverte
Name a strong acid
Slide 22 - Question ouverte
Name a weak alkali
Slide 23 - Question ouverte
Name a strong alkali
Slide 24 - Question ouverte
Slide 25 - Diapositive
Solution Colour pH
pH 14
pH 4
pH 1
pH 10
pH 7
Purple
Red
Green
orange
Blue
Slide 26 - Question de remorquage
Sort the keywords into the correct box.
Acid
Alkali
Sour
Bitter
pH 10
pH 1
Red - Orange
pH 5
pH above 7
pH 8
Blue- Purple
pH Below 7
Slide 27 - Question de remorquage
Slide 28 - Vidéo
Slide 29 - Diapositive
This acid is...
A
Weak
B
Strong
Slide 30 - Quiz
This acid is...
A
Weak
B
Strong
Slide 31 - Quiz
This acid is...
A
Weak
B
Strong
Slide 32 - Quiz
Match the keyword to the definition.
Lots of acid particles in less solvent.
Few acid particles in lots of solvent.
All the acid particles split up when dissolved.
Some acid particles split up when dissolved.
Concentrated
Dilute
Strong
Weak
Slide 33 - Question de remorquage
Match each diagram to the correct description.
strong & dilute
strong & concentrated
weak & dilute
weak & concentrated
Slide 34 - Question de remorquage
How would you make a dilute acid solution?
Slide 35 - Question ouverte
A pupil has a dilute solution of weak lemon juice and a concentrated solution of strong bleach. What hazard symbol should she use to label each solution? Explain your choice.
