 
 <prompt> text: ```For chemistry, pH (potential of hydrogen) na one numeric scale wey dem dey use to show whether solution dey acidic or basic. E dey approximately the negative of the base 10 logarithm of the molar concentration, wey dem dey measure for units of moles per liter, of hydrogen ions. More precisely e be the negative of the logarithm to base 10 of the activity of the hydrogen ion. Solutions wey get pH wey dey less than 7 dey acidic while solutions wey get pH wey dey greater than 7 dey basic. Pure water dey neutral, with pH 7 (25°C), e no be acid and e no be base. Contrary to wetin people believe, the pH fit be less than 0 or greater than 14 for very strong acids and bases respectively.

pH measurements dey important for agronomy, medicine, biology, chemistry, agriculture, forestry, food science, environmental science, oceanography, civil engineering, chemical engineering, nutrition, water treatment and water purification, and many other things.

The pH scale dey traceable to a set of standard solutions wey pH don dey establish by international agreement. Primary pH standard values dey determine using a concentration cell with transference, by measuring the potential difference between a hydrogen electrode and a standard electrode like the silver chloride electrode. The pH of aqueous solutions fit dey measure with a glass electrode and a pH meter, or an indicator.

Answers to the questions:

1. wetin pH mean?
2. wetin kind of scale?
3. wetin e dey specify?
4. wetin e be the negative of?
5. dem dey measure am in wetin?
6. wetin pH wey dey less than 7?
7. and more than 7?
8. wetin water be?
9. wetin degree?
10. E be water or base?
11. pH fit be less than 10?
12. less than 0?
13. greater than 14?
14. Wetin dem dey use measure the pH of aqueous solutions?
15. and wetin else?``` <response>: ```1. potential of hydrogen
2. numeric
3. the acidity or basicity of an aqueous solution
4. the base 10 logarithm
5. moles per liter
6. acidic
7. basic
8. neutral, at pH 7
9. 25°C
10. neither
11. Yes
12. Yes
13. Yes
14. pH meter
15. a glass electrode``` 