The Ph Scale Reference Sheet
ADVERTISEMENT
1
2
3
4THE pH SCALE
When any compound gets dissolved in water, it dissociates and releases or accepts H+ ions. We can
guess the nature of that compound by comparing the concentration of H
O
-
+
and OH
. If it has
3
O
] > [OH
] it will be acidic
+
-
[H
3
O
] = [OH
] it will be neutral
+
-
[H
3
O
] < [OH
] it will be basic
+
-
[H
3
But how can we find out the strength of any acid or base? There is a scale to measure this strength,
. To develop a scale it is wiser to choose one parameter, that’s why
pHscale
which is known as
scientists have chosen the Hydrogen ion concentration.
+
-
-7
The concentration of H
and OH
found experimentally in water is 1.0×10
M. Other compounds also
+
have H
concentration in the same range. It will be quite difficult to memories and write such a large
number for various compounds, so scientists have developed an easier way. They defined the
+
H
concentration in terms of log, so that they can cut these digits short to a single number.
ADVERTISEMENT
0 votes
Related Articles
Related forms
Related Categories
Parent category: Education