Indicators And pH Flashcards
1
Q
Concentrated acids have a pH of_____
A
0-3
2
Q
Dilute acids have a pH of ____
A
4-6
3
Q
Concentrated alkalis have a pH of ____
A
12-14
4
Q
A neutral substance has a pH of____
A
7
5
Q
Dilute alkalis have a pH of ____
A
8-11
6
Q
Dilute alkalis have a pH of ____
A
8-10
7
Q
What has a pH of lower than 7?
A
Acids
8
Q
What has a pH of higher than 7?
A
Alkalis
9
Q
Do concentrated acids have a high pH or a low pH?
A
Low
10
Q
What has a pH of 7?
A
A neutral substance
11
Q
Do concentrated alkalis have a high pH or a low pH?
A
High
12
Q
What is the problem with litmus?
A
It does not tell you how concentrated the acid or alkali is.
13
Q
What colour do acids turn litmus?
A
Red
14
Q
What colour do alkalis turn litmus?
A
Blue
15
Q
What colour do alkalis turn litmus?
A
Blue
