Formula deep page
pH Scale
pH 0-6: acid (lower = stronger). pH 7: neutral. pH 8-14: base (higher = stronger)
This formula belongs to the chapter "Acids, Bases and Salts" in Class 7 Science. Use it after identifying the right variables, matching the chapter context, and writing the substitution clearly.
How to use it
- Identify the quantity you need to find.
- Check the related variables and units from the question.
- Substitute values carefully into the formula.
- Simplify step by step and write the final statement.
Worked cue
Battery acid: pH 1. Lemon: pH 2. Blood: pH 7.4. Baking soda: pH 9. Drain cleaner: pH 14