Практическое

pH Calculator

⚗️Калькулятор pH

H⁺ concentration (mol/L)

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Что такое pH Calculator?

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pH is a logarithmic scale measuring the acidity or alkalinity of a solution, ranging from 0 (highly acidic) to 14 (highly alkaline), with 7 being neutral (pure water at 25°C). Each unit represents a 10× change in hydrogen ion concentration.

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Формула

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f(x)pH = −log₁₀[H⁺] where [H⁺] is the hydrogen ion concentration in mol/L

Описание переменных

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Символ	Имя	Единица	Описание
H	10^(−pH)	—	10^(−pH)
L	L value	—	Variable used in the calculation

Как pH Calculator

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1pH = −log₁₀[H⁺] where [H⁺] is the hydrogen ion concentration in mol/L
2[H⁺] = 10^(−pH)
3pOH = 14 − pH (at 25°C)
4Acidic: pH < 7 | Neutral: pH = 7 | Alkaline (basic): pH > 7

Решённые примеры

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Пример 1

Дано:[H⁺] = 0.001 mol/L

Результат:pH = 3

−log₁₀(10⁻³) = 3. Acidic (vinegar level)

Пример 2

Дано:pH = 11

Результат:[H⁺] = 10⁻¹¹ mol/L

Strongly alkaline — bleach, ammonia

Практическое применение

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Academic homework and exam preparation

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Engineering and architecture calculations

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Everyday measurement tasks around the home

Common pH Values

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Substance	pH	Category
Battery acid	0	Extremely acidic
Gastric acid (stomach)	1–2	Very acidic
Vinegar / lemon juice	2–3	Acidic
Coffee	5	Mildly acidic
Pure water	7	Neutral
Baking soda	9	Mildly alkaline
Bleach	12	Strongly alkaline

Часто задаваемые вопросы

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What is Ph?

How accurate is the Ph calculator?

The calculator uses the standard published formula for ph. Results are accurate to the precision of the inputs you provide. For financial, medical, or legal decisions, always verify with a qualified professional.

What units does the Ph calculator use?

This calculator works with inches, Celsius. You can enter values in the units shown — the calculator handles all conversions internally.

What formula does the Ph calculator use?

The core formula is: pH = −log₁₀[H⁺] where [H⁺] is the hydrogen ion concentration in mol/L. Each step in the calculation is shown so you can verify the result manually.

Источники

Только в информационных целях. Этот инструмент не заменяет профессиональную медицинскую консультацию, диагностику или лечение. Всегда обращайтесь к квалифицированному медицинскому специалисту.

Сравнить с

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pH vs pOH

Mathematically verified

Reviewed October 2026

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