Final answer:
The pH of hydrotest water can vary depending on its composition. Pure water or neutral solutions have a pH of 7.0. Hydrotest water can be acidic or basic, with acidic hydrotest water having a pH between 5 and 6, and basic hydrotest water having a pH greater than 7.
Step-by-step explanation:
The pH of hydrotest water can vary depending on its composition. In general, pure water or neutral solutions have a pH of 7.0. However, if hydrotest water contains dissolved CO2, the presence of carbonic acid can make the pH slightly acidic, with a pH between 5 and 6. On the other hand, if hydrotest water is basic, the pH will be greater than 7. The higher the pH, the more basic the solution is.