acids & bases Flashcards
1
Q
pH?
A
power of hydrogen
2
Q
what does pH scale measure?
A
ions which determines REACTIVITY
3
Q
define acids and bases
A
description of reactivity of solutions
4
Q
what does it mean if a scale is logarithmic?
A
large number ranges compacted (powers of 10)
5
Q
what is the pH scale number range?
A
0-14
6
Q
which #’s are considered acidic
A
0 - 6.9
7
Q
which #’s are considered basic
A
7 - 14
8
Q
what # is neutral?
A
7
9
Q
example of neutral on pH
A
distilled water
10
Q
example of acidic on pH
A
stomach acid
11
Q
example of basic on pH
A
oven cleaner
12
Q
explain weak and strong points of pH scale
A
closer to 7 is weak and further is stronger
13
Q
define logarithmic scale
A
number difference is 10x
14
Q
what are buffers?
A
chemicals that neutralize acidic or basic substances
15
Q
what is an acid
A
hydronium
