Final answer:
If the pH becomes greater than 7.45, it is known as basic or alkaline. The pH scale ranges typically from 0 to 14 and reflects the acidity or basicity of a solution, with 7 being neutral. Higher than 7.45 indicates a basic solution, which in the human body, can result in alkalosis.
Step-by-step explanation:
If the pH becomes greater than 7.45, this condition is known as a basic or alkaline state. The pH scale is used to describe the acidity or basicity of a solution. A pH value of 7 is considered neutral; values below 7 indicate acidity, and values above 7 indicate basicity. In human physiology, a blood pH higher than 7.45 can lead to a state called alkalosis, which can have various health implications. When considering this in a chemical context, such as during a titration, the pH at the equivalence point can be significantly greater than 7, especially when titrating a weak acid with a strong base. For example, titrating acetic acid with sodium hydroxide can result in a pH above 7 at the equivalence point, indicating the presence of a basic solution. It's important to note that while the pH scale typically ranges from 0 to 14, it can technically have no limits as it's a logarithmic scale based on the concentration of hydronium ions [H3O+].