Citric acid in fruits adds a tangy flavor and acts ... Beer is similarly acidic, averaging between 3.9 and 4.5 on the pH scale. Pickled foods, such as cucumbers, sauerkraut, and olives, are ...

One of the jobs of a chemist is to tell the difference between an acid and an alkali and know ... This is measured using the pH scale, which runs from pH 0 to pH 14. Neutral solutions have a ...

The pH scale measures how strongly acidic or alkaline ... This indicates a pH value of 7 and tells us that water is neither alkaline or acid, but neutral. Acidic solutions have pH values less ...