The pH scale ranges from 0 to 14, with 0 being highly acidic and 14 being highly alkaline. A pH value of 7 is considered ...
The pH scale measures how strongly acidic or alkaline a solution is using a set of values from pH 0 to pH 14. When pure water ... Stomach acid has a range of pH values, depending on how long ...
Each enzyme has an optimum pH but it also has a working range of pH values at which it will still ... of pH 2.5 and a working range of between pH 1-4. Catalase has an optimum pH of 9 and a working ...