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Acid and pH
Автор: Prakriti Sundar Samanta
Загружено: 2026-01-03
Просмотров: 6
Описание:
pH is calculated using the formula pH = -log₁₀[H⁺], where [H⁺] represents the hydrogen ion concentration in moles per liter (M).
Calculation Steps
Identify the [H⁺] value, typically in scientific notation like 1.0 × 10⁻³ M. Compute the base-10 logarithm of [H⁺], then apply the negative sign; for [H⁺] = 0.001 M, log(0.001) = -3, so pH = -(-3) = 3.
Key Properties
The result matches the number of significant figures in [H⁺], and a 10-fold increase in [H⁺] decreases pH by 1 unit. This logarithmic scale quantifies acidity precisely in solutions.
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