How is pH 1 expressed in moles per liter?

pH is a measure of the hydrogen ion concentration in a solution, calculated using the formula pH = -log[H⁺]. A pH of 1 indicates that the concentration of hydrogen ions, [H⁺], is 10 raised to the power of -1. This can be expressed in moles per liter as 0.1 or 1.0 x 10^-1.

This means that when the pH is 1, there are 0.1 moles of hydrogen ions present in one liter of solution. As the pH decreases, the hydrogen ion concentration increases logarithmically. Therefore, understanding the relationship between pH and hydrogen ion concentration is crucial in environmental science and wastewater management, as it impacts chemical reactions and biological processes in water treatment systems.