Why Are pH Values Only In A Range Of 0-14?

The video tutorial explains the pH scale, which ranges from 1 to 14, with 7 being neutral. It describes how values below 7 indicate acidity and values above 7 indicate alkalinity. The pH scale is logarithmic, meaning each unit change represents a tenfold change in acidity or alkalinity. The concept of pH was introduced by Soren Peter Lauritz, and it measures the hydrogen ion concentration. Although theoretically, pH can range from negative to positive infinity, practical measurements are usually between 0 and 14. Extreme pH values are difficult to measure accurately due to limitations in instruments. The video concludes by emphasizing the importance of pH in chemistry and the need for improved measurement techniques.

Discuss the practical implications of having a negative pH value.

What challenges exist in measuring pH values outside the conventional range of 0 to 14?