pH value Flashcards
(9 cards)
1
Q
what on the scale of 0 - 14, does acids fall under?
A
0 - 7
2
Q
what on the scale of 0 - 14, does alkalis fall under?
A
7 - 14
3
Q
what on the scale of 0 - 14, does neutral fall under?
A
7
4
Q
what acid has the lowest pH value?
A
strong acids
5
Q
what is pH?
A
number between 0 and 14 that tells us how acidic or basic a substance is
6
Q
what is alkali?
A
base that can dissolve in water
7
Q
what is corrosive?
A
substance that dissolves away at metals
8
Q
what is an universal indicator?
A
can show us whether a substance is an acid or base
cannot show how strong or weak the acid or base is
9
Q
digital pH meters
A
measure the pH of a substance very accurately and quickly
