What is the pH value of a neutral solution at 25°C?

A neutral solution at 25°C has a pH value of 7. This is a fundamental concept in chemistry that defines neutrality in terms of hydrogen ion concentration. At this temperature, pure water possesses equal concentrations of hydrogen ions (H⁺) and hydroxide ions (OH⁻), each being 1 × 10⁻⁷ moles per liter. The pH scale, which ranges from 0 to 14, quantifies the acidity or basicity of a solution. A pH of 7 indicates a balance where acidity and basicity are equal, hence denoting a neutral solution. Values below 7 indicate acidity (more H⁺ ions), while values above 7 indicate basicity (more OH⁻ ions).