Question

what is strong and weak acid in ph scale

Answer 1

The pH scale is used to measure how acidic or basic a substance is. The scale goes from 0 to 14. A substance with a pH of 0 through 6 is considered an acid, while a substance with a pH of 8 through 14 is considered a base. A pH of 7 is neutral. Uncontaminated, pure water is neutral. The closer the number is to 7, the weaker the substance is. The farther the number is from 7, the stronger the substance is.

A substance with a pH of 1 or 2 would be a strong acid. A substance with a pH of 5 or 6 would be a weak acid.

A substance with a pH of 13 or 15 would be a strong base. A substance with a pH of 8 or 9 would be a weak base.

Answer 2

Answer:

The hydrogen ion concentration, sometimes known as pH, is a measure of a solution's acidity or alkalinity. Typically, the pH scale runs from 0 to 14. Acidic aqueous solutions at 25 °C have a pH under 7, whereas basic or alkaline solutions have a pH over 7.

Explanation:

Strong acids:

• Acids are things that have a pH lower than 7.0. The value drops as the concentration of H+ ions in the solution rises.

• Strong acids are substances that either totally ionizes in solution or release H+ ions quickly.

• Strong acids, therefore, have a lower pH value, near 0 to 1. Lower pH values indicate stronger acids and larger H+ ion concentrations in the solution.

Weak acids:

• The pH of some substances affects how they behave. Contrarily, compounds with a pH greater than 7.0 are known as bases.
• The value keeps increasing as the concentration of H+ in the solution decreases.
• Chemicals known as strong bases quickly release the OH- ion from a solution.
• These ions take up the H+ ion in the solution, raising the pH level of the mixture. Strong bases thus often have pH values of 13 or 14.

Hence, strong and weak acids are pH scales mentioned above.

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