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pH Formula:
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PH calculation is a fundamental concept in chemistry that measures the acidity or basicity of a solution. The pH scale ranges from 0 to 14, where values below 7 indicate acidity, values above 7 indicate basicity, and 7 represents neutrality.
The calculator uses the pH formula:
Where:
Explanation: The negative logarithm of hydrogen ion concentration gives the pH value, which represents the solution's acidity level on a logarithmic scale.
Details: pH calculation is essential in various fields including chemistry, biology, environmental science, medicine, and industrial processes. It helps determine solution properties, chemical reactivity, and biological compatibility.
Tips: Enter hydrogen ion concentration in moles per liter (M). The value must be positive and greater than zero. The calculator will compute the corresponding pH value.
Q1: What Is The Relationship Between PH And Hydrogen Ion Concentration?
A: pH and hydrogen ion concentration have an inverse logarithmic relationship. As [H⁺] increases, pH decreases, indicating higher acidity.
Q2: What Are Typical PH Values For Common Substances?
A: Battery acid (0-1), lemon juice (2-3), coffee (5), pure water (7), seawater (8), baking soda (9), ammonia (11), bleach (13).
Q3: How Does Temperature Affect PH?
A: Temperature affects the autoionization of water, changing the neutral point. At 25°C, neutral pH is 7, but this varies with temperature.
Q4: What Is The Difference Between PH And POH?
A: pH measures hydrogen ion concentration while pOH measures hydroxide ion concentration. They are related by pH + pOH = 14 at 25°C.
Q5: Can PH Be Negative Or Greater Than 14?
A: Yes, for extremely concentrated acids pH can be negative, and for extremely concentrated bases pH can exceed 14, though these are rare in practice.