What are the pH of acids and bases?

1 Answer
Aug 5, 2017

Answer:

A scale that measures the concentration of hydrogen ions in an aqueous solution.

Explanation:

pH is a logarthmic scale that is used to measure the concentration of hydrogen ions in an aqueous solution. It is used towards identifying how #"acidic"# or #"basic"# a solution is.

Acids are solutions with a low pH -> having a pH of less than #7#.
Bass are solutions with a high pH -> having a pH of higher than #7#.
There are also neutral solutions with a pH of #7#.

I'm not explaining acids and bases so I won't talk about them that much.

pH can be calculated by using the formula: #pH=-log[H^+]#. Where:
=> #pH# is the pH. Simple as that. No units - pH is not a unit.
=> #log# is the logarithm... because pH is a logarthmic scale.
=> #H^+# the concentration of hydrogen ions.

There are also things called pH indicators, that when reacting with a solution, will change a certain colour. Helpful to determine how acidic/basic an acid/base is.

I think that's the gist of it.

Hope this helps :)