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What are five facts about the pH scale?
The pH scale is a measure of the acidity or alkalinity (basicity) or a solution. The scale runs from 0 to 14 , with acids having a pH less than 7, 7 being neutral, and bases having a pH higher than 7. Acids and bases react with each other in what is called a neutralization reaction. The reaction produces salt and water and leaves the solution closer to a neutral pH than before.
Why was the pH scale invented?
The pH scale was developed because the concentration of the solution can vary by so many factors they found over time, and a pH scale was the easiest way to express the variation of the solution.
What does the pH scale tell you?
The pH scale can tell if a liquid is more acid or more base, just as the Fahrenheit or Celsius scale is used to measure temperature. The range of the pH scale is from 0 to 14 from very acidic to very basic. A pH of 7 is neutral. A pH less than 7 is acidic and greater than 7 is basic.
What you should know about the pH scale?
neutral solutions are pH 7 exactly
What is the pH scale and what does it measure?
The pH scale takes its name from the words potential of hydrogen. It is a scale used to measure the acidity or alkalinity of a solution. The pH scale uses a range from 0 to 14, with 7.0 indicating neutrality.
What are the basic numbers on the pH scale?
The pH scale ranges from 0 to 14: Acidic water has a pH lower than 7. The most acidic substances have a pH of 0. Battery acid falls into this category. Alkaline water has a pH of 8 or above. The most alkaline substances, such as lye, have a pH of 14. Pure water has a pH of 7 and is considered “neutral” because it has neither acidic nor basic qualities.
What does the pH scale tell us about a solution?
The pH scale and universal indicator can give more information, telling how acidic or alkaline something is. Universal indicator has many different colour changes and so shows us the pH value of the solution. The pH scale runs from 0 to 14, with 0 being extremely acidic, 7 being neutral and 14 being extremely alkaline.