Changing the pH level can change the shape of a protein. This process is called "denaturing" the protein. When a protein becomes denatured, it does not function optimally or it does not function at all. More »

Hydrogen peroxide, also known as dihydrogen dioxide, has a pH level anywhere from 1 to 5, depending on the solution's concentration and how it is produced. Many hydrogen peroxide solutions contain stabilizers that affect... More »

A change in the pH, or acidity level, can change the shape of an enzyme, preventing it from fulfilling its purpose, according to a Florida State University biochemistry laboratory manual. According to Elmhurst College, e... More »

Storage temperature affects the pH level of some juices, particularly orange juice, which has a higher pH level when it is cold and a lower pH level at temperatures higher than normal room temperature. Citric acid is pre... More »

According to the Hyperphysics Web page of Georgia State University, concentrated HCl has a pH of 0. The pH of HCl is highly dependent upon the concentration of HCl in water. The less concentrated the HCl solution, the hi... More »

www.reference.com Science Chemistry

At 77 degrees Fahrenheit, the pH of pure water is approximately 7. The pH value describes the acidity or basicity of an aqueous solution. Acids have pH values of less than 7 while bases have pH values greater than 7. A p... More »

The pH Phosphoric acid is a non-constant value. Like other acids and alkaline compounds whose pH values are measured on a standard pH scale, the value of a given solution of the acid depends on its concentration. More »