Investigating the pH scale Flashcards
1
Q
What is Universal indicator
A
It is a mixture of dyes which can change colour depending on the pH of the solution.
2
Q
What is pH paper?
A
pH paper is paper that has been soaked in universal indicator
3
Q
What is the pH scale used for?
A
It is used to measure how acid or alkaline a solution is
4
Q
How big is the pH scale?
A
The pH scale is from 0 to 14
5
Q
What is the pH range for acids?
A
Less than 7
6
Q
What is the pH range for alkalis?
A
More than 7
7
Q
What pH does neutral solutions have?
A
7
8
Q
Name 3 things that are acidic
A
Lemons
Vinegar
Fruit juice
Fizzy drinks
9
Q
Name 3 things that are alkali
A
Soapy water
Window cleaner
Bleach
