The pH of Apple Juice and Ammonia

What is the approximate pH of the apple juice and ammonia?

Tests show that the hydrogen ion concentration of a sample of apple juice is 0.0003 and that of ammonia is 0.0046. Find the approximate pH of each liquid using the formula pH = -log[H3O+].

Approximate pH of Apple Juice and Ammonia

The approximate pH of apple juice is 2.52 and the approximate pH of ammonia is 2.34.

pH is a measure of the acidity or alkalinity of a solution. It is defined as the negative logarithm of the hydrogen ion concentration, written as [H3O+]. The lower the pH value, the more acidic the solution is, while a higher pH value indicates alkalinity.

In this case, the hydrogen ion concentration of the apple juice is 0.0003, and that of ammonia is 0.0046. By applying the formula pH = -log[H3O+], we can calculate the approximate pH values of both liquids.

For apple juice, with a hydrogen ion concentration of 0.0003, the pH is approximately 2.52. This indicates that apple juice is acidic.

For ammonia, with a hydrogen ion concentration of 0.0046, the pH is approximately 2.34. This also falls within the acidic range, albeit slightly more acidic than apple juice.

It is important to note that pH values are logarithmic, meaning each whole pH value below 7 is ten times more acidic than the next higher value. Therefore, the difference in pH values between apple juice and ammonia indicates variations in their acidity levels.