Table of Contents
What is the pH of a strong acid?
around 0 to 1
Strong acids like hydrochloric acid at the sort of concentrations you normally use in the lab have a pH around 0 to 1. The lower the pH, the higher the concentration of hydrogen ions in the solution.
Is a pH of 2 strongly acidic?
Strong acids and bases Hydrochloric acid (HCl) is an example of a strong acid. The pH of a 0.01M solution of HCl is equal to −log10(0.01), that is, pH = 2. Sodium hydroxide, NaOH, is an example of a strong base.
Is pH 4 a strong acid?
Strong Acids Generally, a strong acid has a pH of about zero to 3. The stronger the acid, the better it dissociates in an aqueous solution, releasing more cationic hydrogen (H+) ions. Examples of strong acids include hydrochloric acid (HCl), hydrobromic acid (HBr), perchloric acid (HClO4), and sulfuric acid (H2SO4).
How do you find the pH of two weak acids?
−log[H]=p(H) you can calculate concentration of [H] for each acid, then add the [H] for two acids and calculate p(H) by −log[H].
Is pH 3 a strong acid?
All substances can be classified as neutral (with a pH of about 7), basic (pH greater than 7), or acidic (pH less than 7), and the pH tells us how strong or weak that substance is as well. For example a substance with pH = 8 is a very weak base, but a substance with pH = 3 is a strong acid.
Is pH 4 strong or weak acid?
Observations and discussion
| solution | pH | pH range |
|---|---|---|
| neutral | 7 | 6,0 – 7,6 |
| weak basic | 9 | 8,3 – 10,0 |
| weak acidic | 5 | 3,8 – 5,4 |
Is pH 1 a strong acid?
Strong acids like hydrochloric acid (HCl) have a pH around 0 to 1. The lower the pH value, the higher the concentration of hydrogen ions in the solution, therefore, a stronger acid.
What is the example of strong acid?
Strong acids consist of seven main acids – chloric acid, hydrobromic acid, hydrochloric acid, hydroiodic acid, nitric acid, perchloric acid, and sulfuric acid. These can completely dissociate in water, giving them the title of strong acid.
What are 2 strong bases?
List of Strong Bases (8):
- LiOH (lithium hydroxide)
- NaOH (sodium hydroxide)
- KOH (potassium hydroxide)
- Ca(OH)2 (calcium hydroxide)
- RbOH (rubidium hydroxide)
- Sr(OH)2 (strontium hydroxide)
- CsOH (cesium hydroxide)
- Ba(OH)2 (barium hydroxide)
Is pH 4 a strong or weak acid?
This is because the solution now contains more acid than base and has therefore become acidic. It can be concluded that the indicator is one colour in a basic solution and a different colour in an acidic solution….Observations and discussion.
| solution | pH | pH range |
|---|---|---|
| weak basic | 9 | 8,3 – 10,0 |
| weak acidic | 5 | 3,8 – 5,4 |