pH is a scale used to specify the acidity or basicity of an aqueous solution. It is defined as the negative logarithm (base 10) of the activity of hydronium ions (H+ or, more precisely, H3O+ aq) in a solution. In simple terms, it is a measure of the hydrogen ion concentration in a solution.

The pH scale ranges from 0 to 14. A pH less than 7 is acidic. A pH greater than 7 is basic. A pH of 7 is neutral, which is the pH of pure water at 25 degrees Celsius.

To determine whether a solution is acidic or basic, we can use a pH meter or pH indicator.

1. pH Meter: A pH meter is an electronic device that measures the pH of a solution. It has a probe that is dipped into the solution, and the meter gives a digital reading of the pH.

2. pH Indicator: A pH indicator is a chemical that changes color in response to changes in pH. The color change corresponds to different pH values. Common pH indicators include litmus paper and phenolphthalein. Litmus paper turns red in acidic solutions and blue in basic solutions. Phenolphthalein turns colorless in acidic solutions and pink in basic solutions.

By using a pH meter or pH indicator, we can determine whether a solution is acidic or basic and also the approximate pH value of the solution.

Question

pH is a scale used to specify the acidity or basicity of an aqueous solution. It is defined as the negative logarithm (base 10) of the activity of hydronium ions (H+ or, more precisely, H3O+ aq) in a solution. In simple terms, it is a measure of the hydrogen ion concentration in a solution.

The pH scale ranges from 0 to 14. A pH less than 7 is acidic. A pH greater than 7 is basic. A pH of 7 is neutral, which is the pH of pure water at 25 degrees Celsius.

To determine whether a solution is acidic or basic, we can use a pH meter or pH indicator.

1. pH Meter: A pH meter is an electronic device that measures the pH of a solution. It has a probe that is dipped into the solution, and the meter gives a digital reading of the pH.

2. pH Indicator: A pH indicator is a chemical that changes color in response to changes in pH. The color change corresponds to different pH values. Common pH indicators include litmus paper and phenolphthalein. Litmus paper turns red in acidic solutions and blue in basic solutions. Phenolphthalein turns colorless in acidic solutions and pink in basic solutions.

By using a pH meter or pH indicator, we can determine whether a solution is acidic or basic and also the approximate pH value of the solution.

Knowee AI · Accepted Answer

pH is a scale used to specify the acidity or basicity of an aqueous solution. It is defined as the negative logarithm (base 10) of the activity of hydronium ions (H+ or, more precisely, H3O+ aq) in a solution. In simple terms, it is a measure of the hydrogen ion concentration in a solution.

The pH scale ranges from 0 to 14. A pH less than 7 is acidic. A pH greater than 7 is basic. A pH of 7 is neutral, which is the pH of pure water at 25 degrees Celsius.

To determine whether a solution is acidic or basic, we can use a pH meter or pH indicator.

1. pH Meter: A pH meter is an electronic device that measures the pH of a solution. It has a probe that is dipped into the solution, and the meter gives a digital reading of the pH.

2. pH Indicator: A pH indicator is a chemical that changes color in response to changes in pH. The color change corresponds to different pH values. Common pH indicators include litmus paper and phenolphthalein. Litmus paper turns red in acidic solutions and blue in basic solutions. Phenolphthalein turns colorless in acidic solutions and pink in basic solutions.

By using a pH meter or pH indicator, we can determine whether a solution is acidic or basic and also the approximate pH value of the solution.

what is pH? HOW ACIDIC OR BASIC pH can be determined

Question

Solution

Similar Questions

Upgrade your grade with Knowee