Calculate Ph of 0.0010m
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Reviewed by Calculator Editorial Team
The pH of a solution is a measure of its acidity or alkalinity. For a 0.0010 M (0.1% by mass) solution, we can calculate the pH using the formula for weak acids or bases, depending on the specific substance. This guide explains how to determine the pH of a 0.0010 M solution and provides a calculator for quick results.
How to Calculate pH
The pH of a solution is calculated using the formula:
pH = -log₁₀[H⁺]
Where [H⁺] is the hydrogen ion concentration in moles per liter (M).
For a 0.0010 M solution, the hydrogen ion concentration is 0.0010 M. Plugging this into the formula:
pH = -log₁₀(0.0010)
pH = -(-3)
pH = 3
This means a 0.0010 M solution has a pH of 3, which is acidic.
Note: This calculation assumes the solution behaves as a strong acid or base. For weak acids or bases, additional calculations using equilibrium constants are required.
pH Calculation Example
Let's calculate the pH of a 0.0010 M hydrochloric acid (HCl) solution:
- Determine the hydrogen ion concentration: [H⁺] = 0.0010 M
- Apply the pH formula: pH = -log₁₀(0.0010)
- Calculate the logarithm: log₁₀(0.0010) = -3
- Multiply by -1: pH = -(-3) = 3
The pH of the 0.0010 M HCl solution is 3, indicating it is a strong acid.
pH Scale Reference
The pH scale ranges from 0 to 14:
| pH Range | Classification | Example Solutions |
|---|---|---|
| 0-3 | Strongly acidic | Battery acid, stomach acid |
| 4-6 | Moderately acidic | Vinegar, citrus fruits |
| 7 | Neutral | Pure water, distilled water |
| 8-10 | Moderately alkaline | Baking soda, soap |
| 11-14 | Strongly alkaline | Bleach, drain cleaner |
A pH of 3 falls in the strongly acidic range, which is consistent with our calculation.
FAQ
What is the pH of a 0.0010 M solution?
The pH of a 0.0010 M solution is 3, indicating it is strongly acidic.
How do you calculate pH from molarity?
Use the formula pH = -log₁₀[H⁺], where [H⁺] is the hydrogen ion concentration in moles per liter.
Is a pH of 3 acidic or alkaline?
A pH of 3 is strongly acidic, as it falls in the 0-3 range on the pH scale.
What solutions have a pH of 3?
Solutions with a pH of 3 include battery acid, stomach acid, and other strongly acidic substances.