If a solution has a higher concentration of hydronium ions than pure water, it has a pH lower than 7. A solution with a pH lower than 7 is called an acid . As the hydronium ion concentration increases, the pH value decreases. Therefore, the more acidic a solution is, the lower its pH value is. Did you ever taste vinegar? Like other acids, it tastes sour. Stronger acids can be harmful to organisms. For example, stomach acid would eat through the stomach if it were not lined with a layer of mucus. Strong acids can also damage materials, even hard materials such as glass.
Beth preferred to use natural cleaners. She had been using vinegar alone and mixed with water to clean her home for year and really liked the results. She was careful to were gloves when using it because if she had cuts on her hands it would burn and she also knew she should keep it away from her eyes. When she moved to her knew home however she was surprised to find that the vinegar was damaging her granite counter tops. She noticed that it was causing pitting in the granite.
What has a lower hydronium ion concentration water or lemon?