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If the pH of baking soda is 9, and the pH of an egg is 8, then on a logarithmic scale, this means that the baking soda is ten times basic than the egg.
The pH scale measures whether there is more hydronium or hydroxide ions in a solution. In other words, it tells us how basic or acidic the solution is.
A lower pH i.e. 1 - 6 means something is more acidic, also known as a stronger acid. A higher pH i.e. 8 - 14 means it is more alkaline or a stronger base.
On a logarithmic scale, The pH scale indicates that an increase or decrease of an integer value changes the concentration by a tenfold. For example, a pH of 3 is ten times more acidic than a pH of 4.
This means that if the pH of baking soda is 9, and the pH of an egg is 8, then on a logarithmic scale, this means that the baking soda is ten times basic than the egg.
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