which one has higher concentaration of h+ ion. vineger or baking soda.
Answers
Vinegar
pH is a shorthand numerical value that represents the concentration of hydrogen ions in solution.
The scale 0-14 represents the usual range of possible concentrations of protons (
H
+
) in an aqueous system.
We can consider
H
+
to mean the same as
H
3
O
+
(a water molecule carries
the
H
+
).
pH
is the negative log of hydrogen ion concentration, meaning that:
pH
=
−
log
[
H
3
O
+
]
=
−
log
[
H
+
]
and therefore:
10
−
pH
=
[
H
+
]
10
−
3
=
1.0
×
10
−
3
l
mol/L
Let's simplify:
pH
m
[
H
+
]
(
mol/L
)
l
l
3
m
m
l
1
×
10
−
3
l
l
5
m
m
l
1
×
10
−
5
l
l
7
m
m
l
1
×
10
−
7
l
l
9
m
m
l
1
×
10
−
9
l
11
m
m
1
×
10
−
11
This is counter-intuitive without the background information (i.e. the negative log) but, as you increase pH, you decrease the concentration of
H
+
.
As you decrease the pH, you increase the concentration of
H
+
.