At the temperature of 298K, any pH value below 7.0 indicates an acidic condition.
The pH range of an acid is typically below 7 on the pH scale. Strong acids have a pH closer to 0, while weak acids have a pH closer to 7.
0 - 6.9 The lower the pH number the higher the concentration of hydronium ions and higher the strength of acid
Saliva is slightly alkaline, with a pH range of around 6.2 to 7.6. This means it tends to be more on the basic (alkaline) side of the pH scale.
An acid is any substance below 7.0 on the pH scale. The lower the number, the stronger the acid. For instance, hydrochloric acid (HCl) in the stomach is typically at pH 1.0 - 2.5. The scale can range into negative numbers, but most substances are above pH 0.
Acids can range from 6.9 to 0 on the pH scale, with a solution with a pH of 6.9 being extremely weak, and a solution with a pH of 0 being as strong as 1.0 mol/l [H3O+].Added:(For even higher concentration the pH value can be negative, eg. 2.0 M strong acid has pH = - 0.3)
Acidic solutions have a pH under 7.
The pH range of an acid is typically below 7 on the pH scale. Strong acids have a pH closer to 0, while weak acids have a pH closer to 7.
pH of 7 is neutral. there is no absolute ends to the pH scale, so an acid is anything with a pH rating of less then 7, and a base is anything greater then 7. for all practical purposes, a scale of 1-14 or sometimes 0-14 is used, but it is possible to exceed these constrainsts.
An acid would be on the left side of a pH scale
The Ph scale does not have colours.
The normal range of acidity of stomach acid is 1.5 to 3.5 on the pH scale. On that scale, a neutral substance measures at 7.
0 - 6.9 The lower the pH number the higher the concentration of hydronium ions and higher the strength of acid
The pH scale.
Saliva is slightly alkaline, with a pH range of around 6.2 to 7.6. This means it tends to be more on the basic (alkaline) side of the pH scale.
An acid is any substance below 7.0 on the pH scale. The lower the number, the stronger the acid. For instance, hydrochloric acid (HCl) in the stomach is typically at pH 1.0 - 2.5. The scale can range into negative numbers, but most substances are above pH 0.
Acids can range from 6.9 to 0 on the pH scale, with a solution with a pH of 6.9 being extremely weak, and a solution with a pH of 0 being as strong as 1.0 mol/l [H3O+].Added:(For even higher concentration the pH value can be negative, eg. 2.0 M strong acid has pH = - 0.3)
The range of the pH scale is 0-14.